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Essay on the Digestive System (For Students) | Human Physiology
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In this essay we will discuss about the digestive system in humans. After reading this essay you will learn about:- 1. Organs of Digestive System 2. Accessory Glands for Digestion of Foods.
Essay # 1. Organs of Digestive System:
Digestion means simplification of complex foods. It is the process of breaking various foodstuff into simple products. The complex foods like carbohydrates, proteins and fats are converted into glucose, amino acids and fatly acids respectively by the action of digestive enzymes. These simple substances enter into the blood circulation after absorption and then they are utilized by the body.
Digestive system consists of two main organs:
(1) Alimentary Canal
(2) Digestive Glands
1. Alimentary Canal:
This is also known as digestive tract or gastrointestinal tract. It is a long tube of varying diameter which begins at the mouth and ends at the anus. The length of this tube is about 8-9 meters. It opens at both the ends. The alimentary canal starts at the mouth into which cavity, the glands of the mouth pour the juice. As it passes backwards, it spreads into a funnel shaped cavity called-pharynx.
The tube then narrows into a soft muscular tube about ten inches in long, called the food pipe or gullet. This passes down the neck into the chest. It then opens into the stomach by piercing the diaphragm. The stomach is a large bag lying a little to the left under the diaphragm. It has two openings, one where the food pipe ends and the other where the intestines begin. The alimentary canal narrows again and passes into the small intestine which is about twenty two feet in length.
The first ten inches of the small intestine is called as Duodenum which forms a ‘C’ shaped loop. The rest of the small intestine is like a coiling tube, whose ends opens into a wide but comparatively short tube known as large intestine. It is about six feet long. The last part of the Large Intestine is known as Anus.
2. Digestive Glands:
Various digestive glands help in the digestion of foods.
(1) Salivary glands in the mouth,
(2) Gastric glands in the stomach
(3) Pancreas,
(5) Intestinal glands in small intestine.
All these digestive glands secrete digestive juices containing different enzymes which digest carbohydrate, protein and fatly foods.
Digestive juices:
Five digestive juices are secreted from digestive glands of the body. The enzymes present in these juices help in the digestion of different types of foods.
These juices are:
1. Salivary juice from salivary glands in mouth.
2. Gastric juice from Gastric glands in the stomach.
3. Pancreatic juice from Pancreas.
4. Intestinal juice from Small Intestine.
5. Bile juice from Liver.
Why so many digestive juices are necessary for digestion of food?
There are three reasons for the presence of so many digestive juices:
1. One digestive juice cannot digest three types of foods i.e. proteins, fats, and carbohydrates up to their completion.
2. One digestive juice cannot digest one particular type of food up to its completion, because food cannot remain in one place for a longer period of time.
3. The medium of action of enzymes present in different digestive juices are different. Some act on acidic medium and some on alkaline medium.
Digestion in Different Parts of Alimentary Canal:
The alimentary canal consists of the following organs in which foods are digested:
2. Oesophagus
4. Duodenum
5. Small Intestine
6. Large intestine
The mouth cavity is the front spread out end of the food pipe. The sides of the cavity are formed by the cheeks, the roof by the palate, and the floor by the tongue. When closed, it is bound in-front by the upper and the lower sets of teeth meeting in the middle. The opening at the back of the mouth is known as throat on each side of which there is a mass of tissue called tonsils. In the outside of the mouth cavity there is a slit like opening which is bounded by two soft movable lips.
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How to Write an Expository Essay | Structure, Tips & Examples
Published on July 14, 2020 by Jack Caulfield . Revised on July 23, 2023.
“Expository” means “intended to explain or describe something.” An expository essay provides a clear, focused explanation of a particular topic, process, or set of ideas. It doesn’t set out to prove a point, just to give a balanced view of its subject matter.
Expository essays are usually short assignments intended to test your composition skills or your understanding of a subject. They tend to involve less research and original arguments than argumentative essays .
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Table of contents
When should you write an expository essay, how to approach an expository essay, introducing your essay, writing the body paragraphs, concluding your essay, other interesting articles, frequently asked questions about expository essays.
In school and university, you might have to write expository essays as in-class exercises, exam questions, or coursework assignments.
Sometimes it won’t be directly stated that the assignment is an expository essay, but there are certain keywords that imply expository writing is required. Consider the prompts below.
The word “explain” here is the clue: An essay responding to this prompt should provide an explanation of this historical process—not necessarily an original argument about it.
Sometimes you’ll be asked to define a particular term or concept. This means more than just copying down the dictionary definition; you’ll be expected to explore different ideas surrounding the term, as this prompt emphasizes.
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An expository essay should take an objective approach: It isn’t about your personal opinions or experiences. Instead, your goal is to provide an informative and balanced explanation of your topic. Avoid using the first or second person (“I” or “you”).
The structure of your expository essay will vary according to the scope of your assignment and the demands of your topic. It’s worthwhile to plan out your structure before you start, using an essay outline .
A common structure for a short expository essay consists of five paragraphs: An introduction, three body paragraphs, and a conclusion.
Like all essays, an expository essay begins with an introduction . This serves to hook the reader’s interest, briefly introduce your topic, and provide a thesis statement summarizing what you’re going to say about it.
Hover over different parts of the example below to see how a typical introduction works.
In many ways, the invention of the printing press marked the end of the Middle Ages. The medieval period in Europe is often remembered as a time of intellectual and political stagnation. Prior to the Renaissance, the average person had very limited access to books and was unlikely to be literate. The invention of the printing press in the 15th century allowed for much less restricted circulation of information in Europe, paving the way for the Reformation.
The body of your essay is where you cover your topic in depth. It often consists of three paragraphs, but may be more for a longer essay. This is where you present the details of the process, idea or topic you’re explaining.
It’s important to make sure each paragraph covers its own clearly defined topic, introduced with a topic sentence . Different topics (all related to the overall subject matter of the essay) should be presented in a logical order, with clear transitions between paragraphs.
Hover over different parts of the example paragraph below to see how a body paragraph is constructed.
The invention of the printing press in 1440 changed this situation dramatically. Johannes Gutenberg, who had worked as a goldsmith, used his knowledge of metals in the design of the press. He made his type from an alloy of lead, tin, and antimony, whose durability allowed for the reliable production of high-quality books. This new technology allowed texts to be reproduced and disseminated on a much larger scale than was previously possible. The Gutenberg Bible appeared in the 1450s, and a large number of printing presses sprang up across the continent in the following decades. Gutenberg’s invention rapidly transformed cultural production in Europe; among other things, it would lead to the Protestant Reformation.
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The conclusion of an expository essay serves to summarize the topic under discussion. It should not present any new information or evidence, but should instead focus on reinforcing the points made so far. Essentially, your conclusion is there to round off the essay in an engaging way.
Hover over different parts of the example below to see how a conclusion works.
The invention of the printing press was important not only in terms of its immediate cultural and economic effects, but also in terms of its major impact on politics and religion across Europe. In the century following the invention of the printing press, the relatively stationary intellectual atmosphere of the Middle Ages gave way to the social upheavals of the Reformation and the Renaissance. A single technological innovation had contributed to the total reshaping of the continent.
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An expository essay is a broad form that varies in length according to the scope of the assignment.
Expository essays are often assigned as a writing exercise or as part of an exam, in which case a five-paragraph essay of around 800 words may be appropriate.
You’ll usually be given guidelines regarding length; if you’re not sure, ask.
An expository essay is a common assignment in high-school and university composition classes. It might be assigned as coursework, in class, or as part of an exam.
Sometimes you might not be told explicitly to write an expository essay. Look out for prompts containing keywords like “explain” and “define.” An expository essay is usually the right response to these prompts.
An argumentative essay tends to be a longer essay involving independent research, and aims to make an original argument about a topic. Its thesis statement makes a contentious claim that must be supported in an objective, evidence-based way.
An expository essay also aims to be objective, but it doesn’t have to make an original argument. Rather, it aims to explain something (e.g., a process or idea) in a clear, concise way. Expository essays are often shorter assignments and rely less on research.
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Human digestive system interactive
The lips and cheeks, the roof of the mouth, the floor of the mouth.
- Salivary glands
- Blood and nerve supply
- Stomach contractions
- Gastric mucosa
- Gastric secretion
- Absorption and emptying
- Contractions and motility
- Rectum and anus
- Gross anatomy
- Microscopic anatomy
- Acinar cells
- Islet cells
- General features of digestion and absorption
- Carbohydrates
- Fat-soluble vitamins
- Vitamin B 12
- Intestinal gas
- Production and secretion of peptides
- Somatostatin
- Cholecystokinin
- Gastric inhibitory peptide
- Intestinal glucagon
- Neurotensin
- Pancreatic polypeptide
- Vasoactive intestinal peptide
- Substance P
- Endorphins and enkephalins
- Prostaglandins
- The gastrointestinal tract as an organ of immunity
- Embryonic development
- Evolutionary development
human digestive system
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- digestive system - Student Encyclopedia (Ages 11 and up)
- Table Of Contents
- What is the human digestive system?
- What are the main organs involved in the human digestive system?
- How does the digestive system help in breaking down food?
- What role does the stomach play in digestion?
- How does the small intestine contribute to the digestive process?
- What is the function of the large intestine in the digestive system?
- How do enzymes aid in digestion, and where are they produced?
- What is the importance of the liver and pancreas in digestion?
- How does the body absorb nutrients from the food we eat?
- What are some common problems or diseases associated with the digestive system?
human digestive system , system used in the human body for the process of digestion . The human digestive system consists primarily of the digestive tract , or the series of structures and organs through which food and liquids pass during their processing into forms that can be absorbed into the bloodstream. The system also consists of the structures through which wastes pass in the process of elimination and of organs that contribute juices necessary for the digestive process.
In order to function properly, the human body requires nutrients. Some such nutrients serve as raw materials for the synthesis of cellular materials, while others help regulate chemical reactions or, upon oxidation, yield energy. Many nutrients, however, are in a form that is unsuitable for immediate use by the body; to be useful, they must undergo physical and chemical changes, which are facilitated by digestion.
Structures and functions of the human digestive system
The digestive tract begins at the lips and ends at the anus . It consists of the mouth , or oral cavity, with its teeth , for grinding the food, and its tongue , which serves to knead food and mix it with saliva ; the throat, or pharynx ; the esophagus ; the stomach ; the small intestine , consisting of the duodenum , the jejunum, and the ileum ; and the large intestine , consisting of the cecum , a closed-end sac connecting with the ileum, the ascending colon, the transverse colon, the descending colon, and the sigmoid colon , which terminates in the rectum . Glands contributing digestive juices include the salivary glands , the gastric glands in the stomach lining, the pancreas , and the liver and its adjuncts—the gallbladder and bile ducts. All of these organs and glands contribute to the physical and chemical breaking down of ingested food and to the eventual elimination of nondigestible wastes. Their structures and functions are described step by step in this section.
Mouth and oral structures
Little digestion of food actually takes place in the mouth. However, through the process of mastication , or chewing, food is prepared in the mouth for transport through the upper digestive tract into the stomach and small intestine, where the principal digestive processes take place. Chewing is the first mechanical process to which food is subjected. Movements of the lower jaw in chewing are brought about by the muscles of mastication (the masseter, the temporal , the medial and lateral pterygoids, and the buccinator). The sensitivity of the periodontal membrane that surrounds and supports the teeth, rather than the power of the muscles of mastication, determines the force of the bite.
Mastication is not essential for adequate digestion. Chewing does aid digestion, however, by reducing food to small particles and mixing it with the saliva secreted by the salivary glands. The saliva lubricates and moistens dry food, while chewing distributes the saliva throughout the food mass. The movement of the tongue against the hard palate and the cheeks helps to form a rounded mass, or bolus , of food.
The lips, two fleshy folds that surround the mouth, are composed externally of skin and internally of mucous membrane , or mucosa. The mucosa is rich in mucus-secreting glands, which together with saliva ensure adequate lubrication for the purposes of speech and mastication.
The cheeks, the sides of the mouth, are continuous with the lips and have a similar structure. A distinct fat pad is found in the subcutaneous tissue (the tissue beneath the skin) of the cheek; this pad is especially large in infants and is known as the sucking pad. On the inner surface of each cheek, opposite the second upper molar tooth, is a slight elevation that marks the opening of the parotid duct, leading from the parotid salivary gland, which is located in front of the ear. Just behind this gland are four to five mucus-secreting glands, the ducts of which open opposite the last molar tooth.
The roof of the mouth is concave and is formed by the hard and soft palate . The hard palate is formed by the horizontal portions of the two palatine bones and the palatine portions of the maxillae, or upper jaws. The hard palate is covered by a thick, somewhat pale mucous membrane that is continuous with that of the gums and is bound to the upper jaw and palate bones by firm fibrous tissue. The soft palate is continuous with the hard palate in front. Posteriorly it is continuous with the mucous membrane covering the floor of the nasal cavity. The soft palate is composed of a strong, thin, fibrous sheet, the palatine aponeurosis, and the glossopalatine and pharyngopalatine muscles. A small projection called the uvula hangs free from the posterior of the soft palate.
The floor of the mouth can be seen only when the tongue is raised. In the midline is a prominent, elevated fold of mucous membrane ( frenulum linguae ) that binds each lip to the gums, and on each side of this is a slight fold called a sublingual papilla , from which the ducts of the submandibular salivary glands open. Running outward and backward from each sublingual papilla is a ridge (the plica sublingualis) that marks the upper edge of the sublingual (under the tongue) salivary gland and onto which most of the ducts of that gland open.
The gums consist of mucous membranes connected by thick fibrous tissue to the membrane surrounding the bones of the jaw. The gum membrane rises to form a collar around the base of the crown (exposed portion) of each tooth. Rich in blood vessels, the gum tissues receive branches from the alveolar arteries; these vessels, called alveolar because of their relationship to the alveoli dentales, or tooth sockets, also supply the teeth and the spongy bone of the upper and lower jaws, in which the teeth are lodged.
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Human Digestive System - Free Essay Examples and Topic Ideas
The human digestive system is responsible for breaking down ingested food into its constituent molecules, which can then be absorbed into the bloodstream for use by the body. It consists of organs such as the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus, each of which serves a specific purpose in the process of digestion. Various enzymes and acids are involved in breaking down food as it moves through the digestive tract, while muscles throughout the system help move food along and mix it with digestive secretions. Finally, waste products are eliminated from the body through the rectum and anus as solid feces.
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Essay on Digestive System
Students are often asked to write an essay on Digestive System in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.
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100 Words Essay on Digestive System
Introduction to digestive system.
The digestive system is a group of organs that work together to change the food we eat into energy for our bodies. It’s like a food processing factory. It includes the mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.
Process of Digestion
Digestion starts in the mouth when we chew food. It then travels down the esophagus to the stomach. In the stomach, food is mixed with stomach acids to break it down into a liquid. This liquid then moves to the small intestine.
Role of Small Intestine
The small intestine plays a major role in digestion. Here, nutrients from the liquid food are absorbed into the bloodstream. The blood then carries these nutrients to all parts of the body. The leftover food, which the body can’t use, moves to the large intestine.
Role of Large Intestine
The large intestine is the last part of the digestive process. It absorbs water from the leftover food and turns it into waste. This waste then leaves the body through the rectum and anus. This whole process is known as digestion.
250 Words Essay on Digestive System
What is the digestive system.
The digestive system is a group of organs that work together to change the food you eat into energy and basic nutrients to power your body. It is like a food processing plant that takes in raw materials (food) and turns them into something the body can use.
Parts of the Digestive System
The digestive system is made up of several parts. It starts with the mouth, where you chew and swallow your food. Then there’s the esophagus, a tube that carries food to your stomach. The stomach is like a mixer, churning and breaking down food into a liquid.
How Food Travels
From the stomach, the liquid food then goes into the small intestine. Here, it is broken down even more so your body can absorb the nutrients. Finally, what’s left goes into the large intestine, and then out of your body as waste.
The Role of the Liver and Pancreas
The liver and the pancreas also play important roles in digestion. The liver makes a juice called bile that helps to break down fats. The pancreas makes juices that help to break down carbohydrates, fats, and proteins.
Importance of the Digestive System
The digestive system is very important. Without it, our bodies wouldn’t get the nutrients they need. It keeps us healthy and gives us energy. So, remember to eat a balanced diet to keep your digestive system happy and healthy.
500 Words Essay on Digestive System
The digestive system: an introduction.
The digestive system is a group of organs that work together to change the food we eat into energy our bodies can use. It’s like a food processing factory inside our body. It includes the mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus. The liver and pancreas also play a big role in digestion.
Starting Point: The Mouth
Digestion begins in the mouth. When we eat, our teeth break down the food into smaller pieces. Our saliva, a liquid made by the salivary glands, mixes with these pieces, making them easier to swallow. Saliva also starts the process of breaking down the food chemically.
The Esophagus: The Food Pipe
The esophagus is a long tube that connects the mouth to the stomach. It uses a process called peristalsis to move food. This process is like a wave of muscle contractions that pushes the food down into the stomach.
The Stomach: The Mixing Pot
The stomach is like a mixing pot. Here, the food is mixed with stomach acid and enzymes, which break it down into a liquid. This liquid is then sent to the small intestine.
The Small Intestine: The Nutrient Absorber
The large intestine: the water saver.
The large intestine, also known as the colon, is the final part of the digestive system. Its job is to absorb water from the remaining indigestible food matter, and then to pass useless waste material from the body.
The End of the Journey: The Rectum and Anus
The rectum and anus are the last parts of the digestive system. The rectum stores the waste until it’s ready to leave the body. Then, it passes through the anus and out of the body as feces.
Conclusion: The Importance of the Digestive System
Remember, eating a balanced diet and drinking plenty of water can help keep your digestive system healthy and working well. Regular exercise is also important as it helps keep food moving through the digestive system, reducing the risk of constipation.
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Human Digestion Essay
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Introduction
Factors affecting the amount of time necessary to digest food and helpful foods, digestion in organs, breakdown of fats, carbohydrates and proteins, reference list.
Digestive system is one of the most important systems of any organism. It enables the organism get nutrients which are important for functioning. The most important organs of the human digestive system are mouth, salivary glands, pharynx, oesophagus, stomach, liver, pancreas, gallbladder, small intestine, large intestine and anus (Grosvenor & Smolin, 2012). Food travels through the digestive system and each organ contributes to rendering food into molecules or nutrients.
It is necessary to note that this travel can take from 24 hours to 72 hours. A number of factors affect the amount of time necessary for digestion. Firstly, the type of food plays an important role in this process (Gropper & Smith, 2012). Such products as vegetables, fruit and grains are rich in fibre.
Thus, fibre moves quickly through the digestive tract. On the contrary, eating a lot of meat will slow down the process as this food needs more time to be digested. Notably, physical training positively affects digestion process as it helps food move through the digestive tract. Drugs containing enzymes can also reduce the amount of time necessary for digestion. Caffeine slows down digestive processes.
Digestion starts in the mouth. Food is grinded with the help of teeth. Notably, salivary glands secrete certain enzymes which start processing food in the mouth (Gropper & Smith, 2012). Saliva also moisturises food which helps it travel to the stomach. Food moves to the stomach through the pharynx and oesophagus with the help of contractions. In the stomach, food is grinded and mixed with the help of enzymes and acid secreted by this organ.
After this, food travels to the small intestine where it is processed with the help of enzymes secreted by pancreas and bile secreted by the liver. Bile is secreted by the liver but it is first stored in gallbladder which sends it to the small intestine. The small intestine is the organ which absorbs most nutrients. When all nutrients are absorbed, the food moves to the large intestine where liquid may be absorbed. Then the food leaves the body.
There are three types of nutrients. These are fats, carbohydrates and proteins. Each type of nutrient breaks down to be used in the body. Notably, the process of breakdown is different for all three types of nutrients (Gropper & Smith, 2012). With the help of enzymes, proteins are broken down into amino acids.
These acids are used to build other types of proteins necessary for transporting molecules and catalysing numerous chemical reactions which take place in the body. Fats are transformed into fatty acids travel to blood which transports them to cells which need these acids.
Acids which are not necessary are stored in fat cells. Fats are necessary for energy. Carbohydrates are also important for energy. These nutrients are broken down into glucose which is stored in liver for a short period of time until the needs of the body are met. Then glucose which is not needed is transformed into fats which are used for energy.
On balance, it is necessary to note that digestive system consists of several organs which perform certain roles. Remarkably, people need different types of nutrients which can be acquired from different foods, e.g. vegetables, fruit, meat, fish, grains, cereals, nuts, etc. Hence, people need a balanced diet consisting of proteins, carbohydrates and fats.
Gropper, S., & Smith, J. (2012). Advanced nutrition and human metabolism . Belmont, CA: Cengage Learning.
Grosvenor, M.B., & Smolin, L.A. (2012). Visualizing nutrition: Everyday choices . Hoboken, NJ: John Wiley & Sons.
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Essays on Digestive System
The digestive system is a long tube that runs from your mouth to your bottom (anus). Its many organs break down food, extract nutrients from it, and move those nutrients into the bloodstream. It also removes waste materials and stores energy for future use. How It Works Your digestive system has several...
Subtle Bacillus The bacteria can be extracted from the digestive system of a dead ruminant. The bacterium is highly flagellated and may therefore travel through liquids in the digestive tract. Additionally, research indicates that the bacterium is quite receptive to genetic engineering. Ruminant guts have more concentration because they have holes...
One of the main causes of many urinary tract infections, including pyelonephritis, cystitis, and disease-related complications that lead to acute renal failure, is the uropathogenic E. coli (Bien, Olga, and Przemyslaw 3). However, it is frequently found in the digestive tracts of both humans and animals, where it creates a...
Words: 2538
The Role of the Microbiota in Intestinal Health The microbiota, a varied microbial community found in the human intestine, has a role in an individual's physiology in both health and sickness. By activating defense mechanisms, creating chemicals that block immune responses, and competing for metabolites, this microbiota promotes colonization resistance to...
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Pizza Ingredients and Digestion Pizza often includes ingredients like dough, pepperoni, cheese, and salad. Jim must have consumed one of them while eating his pizza. Because the ingredients have varied nutrients, the digestion of the pizza is controlled by its ingredients.Digestion of Dough Wheat flour, cornmeal, salt, and other additions are used...
Words: 1021
The small intestine, colon, and one stomach compartment make up the pig's monogastric digestive system. The cardia, body, and pylorus are three distinct pouches that make up the stomach (Colville & Bassert, 2015). The fundus filters food as it travels from the esophagus into the stomach in the first segment,...
Words: 1170
A digestive enzyme called chymotrypsin catalyzes the breakdown of peptide bonds in the ileum and duodenum to produce polypeptides and amino acids that the body can use. It is produced as chymotrypsinogen, an inactive form, by the acinar cells in the pancreas. Chymotrypsin is a digestive aid and anti-inflammatory agent...
Words: 1741
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Expository Essays: A Complete Guide
You write a lot of essays, and while they might share some broad characteristics such as their structure, they can be quite different from each other. Some essays are meant to convince the reader that the position you’re arguing is the correct position, while others explore the differences and similarities between literary works. Beyond these, you might also be assigned to write essays that explain subjects, events, and concepts to the reader, sometimes walking them through processes. These essays are known as expository essays.
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What is an expository essay?
An expository essay is an essay that communicates factual information. Broadly, this type of writing is known as expository writing . Expository essays rely on different structures to communicate their positions, like compare and contrast, process essays, and analyzing cause and effect.
Expository writing is one of the four main types of writing . The others are persuasive, narrative , and descriptive writing.
Knowing how to write an expository essay, along with knowing how to write other types of essays , is an essential skill for any student to master. Expository writing isn’t the place to be cute, clever, or edgy; it’s the kind of writing where you position facts and observations to let them speak for themselves in the most effective way possible. It’s the kind of writing you do when you’re analyzing information you’ve been assigned to study, thinking critically about concepts covered in class, and explaining the processes and reasons behind the conclusions you’ve reached.
The purpose of expository writing
Expository writing has a clear purpose: to educate the reader. While it may also entertain or persuade the reader, these are secondary benefits and not the author’s goal. Well-crafted expository writing demonstrates the author’s expertise on the subject and in many cases demonstrates how they learned about their subject.
For example, you might be assigned to write an essay about the mock trial your class held. In this essay, you would introduce the assignment and the case your class worked on through the trial. Then in the following body paragraphs , you would describe each stage in the mock trial process (discovery, opening statements, cross-examination, closing statements, jury deliberation, and verdict) and how your class completed each of these stages. In the final paragraph, you would state the verdict your class reached and the judge’s ruling.
Your essay about the mock trial doesn’t argue that the ruling was right or wrong. It merely explains the process your class used to work through the trial process and learn how real court cases move through the court system. In other words, your essay would present facts and process rather than opinion and commentary.
5 types of expository essays
As we mentioned above, expository essays come in many forms. These include the following:
1 Classification essays
In a classification essay, you write about various subjects within one category, discussing each subject’s unique characteristics alongside the characteristics that connect it with others in its category. For example, you might write a classification essay about different kinds of herding dogs. Your essay would start with a thesis statement about how herding breeds are different from other categories of dogs, then in each paragraph, discuss specific herding breeds (corgi, collie, heeler, etc.).
2 Definition essays
A definition essay defines its subject by presenting clear facts about it. Your definition essay might challenge commonly repeated myths about a historical event by presenting firsthand accounts of the event from primary sources and discussing relevant social, political, and economic trends that impacted the event and influenced perceptions of it.
3 Process essays
A process essay walks the reader through the steps involved in completing a task. A recipe has a lot in common with a process essay. A process essay’s opening paragraph explains the process that will be covered and the end result of following the directions. Each body paragraph is a step in the process, then the conclusion explains what the reader should have achieved by completing each step.
4 Compare-and-contrast essays
In a compare-and-contrast essay , you support your thesis statement by examining the differences and similarities between the sources cited. For example, you might write an essay comparing and contrasting the dress code at your school with the dress codes at two neighboring schools. Your body paragraphs might examine the differences in which articles of clothing are and aren’t allowed as well as the overall preciseness of each dress code’s language and the amount of “gray area” present in each policy.
5 Cause-and-effect essays
As the name implies, a cause-and-effect essay gets into how specific events and/or actions caused others to occur. They sometimes trace chains of events to explore why we find ourselves facing certain circumstances today. An example of a cause-and-effect essay might be one tracking how shifting market trends over the past few decades impacted the industries in your region, creating the current local economy.
How to structure an expository essay
Expository essays follow the same general structure you use with every essay assignment : an introduction, body paragraphs that support and expand upon the points you made in your introduction, then a conclusion that reiterates those points and underscores your thesis.
Unless your instructor requires your essay to hit a certain word count, there’s no specific length your essay needs to be. Similarly, it doesn’t need to have a specific number of paragraphs—but it does need to express your points thoroughly and accurately. To achieve this, your essay should follow this format, give or take the quantity of body paragraphs for the number of supporting points you make:
Introduction
In the introduction, you present your essay topic and your thesis statement, ideally hooking your reader with intriguing facts. You also introduce your supporting evidence and all necessary context to help your reader understand your thesis.
Body paragraph
Each supporting point you make needs its own body paragraph. Although the five-paragraph essay is typically considered the “standard” essay length, you might need a six-paragraph or longer essay to thoroughly communicate your thesis statement.
Use transition words and sentences to transition between body paragraphs. Transition words and sentences are the phrases that express the relationship between two paragraphs, signaling to the reader why you’re making a specific point and how that point fits into your overall work.
In your last body paragraph, you’ll need to transition to your conclusion. That doesn’t mean you should start summarizing here—give your final body paragraph as much insight and detail as you gave your previous body paragraphs.
In your conclusion , you restate your thesis statement and summarize the points you made in your body paragraphs. It should neatly tie up any loose ends and answer any lingering questions the reader may have.
How do you write an expository essay?
Before you write your next expository essay, familiarize yourself with the conventions and rules for essay writing . These general guidelines will help you structure your essay and determine the most effective way to present your information. But because you’re writing an expository essay, it’s also important that you understand and incorporate all the characteristics that separate expository essays from other kinds of writing. Keep the following rules for expository writing in mind:
- Despite the taboo, insects make an excellent food source and could stem humanity’s looming food shortage, based on both their protein output and the sustainability of farming them.
- The backlash to rock ’n’ roll music in the ’50s by religious groups and traditionalists actually boosted the genre’s popularity instead of diminishing it as intended.
- Your tone should be objective and academic . While narrative and descriptive essays can take on artistic, impassioned, and familiar tones, expository essays stick to conventional language and a neutral tone.
- Stick to the facts. An expository essay is not the place to express your opinion—or even present the facts in a way meant to change or shape the reader’s opinion.
- Always be completely sure of the facts you’re presenting. That means thoroughly vetting your sources, cross-checking them with other reputable sources, and properly citing every fact you put forth as the truth.
Start writing your expository essay the same way you would start the writing process for any other project: by brainstorming. If you weren’t assigned a topic, you’ll need to determine an appropriate topic on your own—brainstorming is where you’ll determine that topic. It’s also where you’ll determine your thesis statement, the most important component of your expository essay . Don’t move forward with outlining your essay until you have a thesis statement.
Once you have a clear thesis statement, it’s time to outline your essay. With an expository essay, it’s especially important that you present accurate facts in a logical way. It can be very helpful to note your sources for each paragraph in your outline.
With a completed outline, it’s time to start writing. Follow the standard writing process through this first draft, editing, and your revision. Once you’re finished, make sure you proofread your essay carefully—not only for grammar and spelling mistakes, but to double-check that you’ve properly cited every source and formatted your essay according to your assigned style guide.
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In an expository essay, it’s especially important that your writing is mistake-free. Having spelling and grammatical mistakes in your writing undermines your credibility as a writer, so even if your ideas and insights are solid, readers won’t get as much out of your work as they would if it had no mistakes.
That’s why proofreading is so important . . . and why Grammarly is so helpful. Before you submit your essay, use Grammarly to catch any mistakes or unclear sentences that might have sneaked past you while you were proofreading your work. It can also ensure that the tone you’re using is the tone you want to be using—and that it’s consistent through your whole essay.
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Get the ultimate guide on writing an expository essay – step-by-step tips and examples.
Are you grappling with the challenge of composing a compelling expository essay? Look no further, as this comprehensive guide will provide you with all the essential tools and techniques to effectively convey your ideas and captivate your readers. By employing powerful writing strategies and supplementing your work with concrete examples and real-life anecdotes, you will unlock the true potential of your explanatory essay.
Begin your writing journey by harnessing the power of clarity and conciseness. Structuring your essay with a logical flow will allow your readers to effortlessly follow your thought process and grasp your central ideas. Employing strong transitions between paragraphs and employing cohesive language will ensure a seamless reading experience. Additionally, honing your analytical skills and supporting your claims with factual evidence will lend credibility to your work while fostering a deep understanding of the topic.
Furthermore, incorporating vivid examples and engaging anecdotes will breathe life into your expository essay, making your content relatable and memorable. By utilizing descriptive language and the art of storytelling, you will create a lasting impact in the minds of your readers. Whether it is a personal experience, a historical event, or a scientific study, weaving in these narratives will amplify the effectiveness and persuasiveness of your essay, leaving a lasting imprint on your audience.
Mastering the Art of Crafting a Compelling Expository Composition: Pointers and Illustrations
An in-depth exploration of the fundamentals behind composing an impactful expository essay can serve as an invaluable tool in your academic and professional endeavors. By harnessing the power of language, analysis, and evidence, you can construct a persuasive and enlightening piece of writing that will captivate your readers. Let us embark on a journey to unravel the secrets of crafting an exquisite expository essay.
1. Avoid monotony: Deliver your ideas in a fresh, stimulating manner to enthrall your audience. Strive to maintain a captivating narrative flow by skillfully employing synonyms, antonyms, idiomatic expressions, and metaphors. This will invigorate your writing and make it truly memorable.
2. Be concise yet comprehensive: Accomplish the delicate balance of being succinct without sacrificing the clarity and depth of your exposition. Remember to select your words wisely, presenting each idea concisely while ensuring it is thorough and complete.
3. Provide evidence: Back up your statements with solid evidence and well-researched examples. Citing credible sources, such as reputable studies, expert opinions, and statistical data, will add credibility and weight to your arguments, making them more persuasive and powerful.
4. Organize your thoughts: Structure your essay in a logical and coherent manner, ensuring that each idea flows seamlessly into the next. Utilize transitional words and phrases to guide your readers through the different sections of your essay, enabling them to follow your line of reasoning effortlessly.
5. Cater to your audience: Tailor your language, tone, and examples to suit the preferences and background of your intended audience. Use relatable and engaging references to convey your message effectively and establish a connection with your readers.
6. Emphasize clarity: Clarity is key when it comes to expository writing. Avoid excessive jargon, convoluted sentences, and ambiguous expressions. Instead, strive for lucidity and precision, ensuring that your readers can easily grasp the main points of your essay.
7. Show don’t tell: Instead of merely stating information, aim to vividly illustrate your ideas through anecdotes, case studies, and real-life examples. This will make your essay more relatable and memorable, enabling your readers to form a deeper understanding of the subject matter.
8. Revise and refine: Do not underestimate the importance of the revision process. Review your essay meticulously, focusing on grammar, clarity, and coherence. Eliminate redundancies, enhance sentence structure, and refine your vocabulary to elevate the quality and impact of your writing.
By equipping yourself with these essential guidelines and examples, you are well-prepared to embark on your expository essay writing journey. Remember, mastering the art of crafting a compelling expository composition requires practice and perseverance. Let your ideas flow, embrace creativity, and allow your words to inspire, educate, and leave an indelible mark in the minds of your readers.
The Significance of an Expository Article
When it pertains to written compositions, the significance of an expository article cannot be underestimated. This type of writing piece serves a crucial purpose in communicating information, presenting facts, and explaining ideas in a clear and concise manner. By utilizing objective analysis, evidence-based reasoning, and logical arguments, an expository essay provides readers with a deeper understanding of a subject matter.
Unlike other forms of writing, an expository essay focuses on informing rather than persuading or entertaining. It acts as a reliable source of knowledge, offering readers an opportunity to broaden their horizons and gain new insights. Whether used in academic, professional, or personal settings, the expository essay serves as a valuable tool for conveying information accurately and objectively.
Furthermore, an expository essay aids in building critical thinking and analytical skills. Through the process of researching and organizing information, the writer develops the ability to evaluate sources, discern facts from opinions, and present arguments based on logical reasoning. This type of writing encourages readers to question assumptions, analyze evidence, and draw their own conclusions.
Moreover, mastering the art of composing an expository essay equips individuals with essential communication skills that are applicable in various aspects of life. By learning how to present complex ideas in a clear and coherent manner, one becomes an effective communicator across different fields and disciplines. Whether it be writing research papers, reports, or even delivering presentations, the skills acquired from writing an expository essay are invaluable in expressing ideas persuasively and engaging an audience.
In conclusion, the importance of an expository essay lies in its ability to provide a comprehensive and objective understanding of a subject matter. By offering factual information, logical arguments, and clear explanations, this type of writing contributes to the development of critical thinking skills and effective communication. Whether in academic, professional, or personal settings, the expository essay plays a vital role in disseminating knowledge and fostering intellectual growth.
Understanding the Purpose and Audience
In order to create a compelling and impactful expository essay, it is important to have a clear understanding of the purpose and audience of your writing.
The purpose of an expository essay is to explain or inform the reader about a specific topic or idea. Unlike other types of essays, the main goal is to provide a balanced analysis and present factual information in a clear and concise manner. The purpose may vary depending on the specific assignment or context, but it is important to always keep the purpose in mind when writing an expository essay.
Equally important is knowing your audience. Understanding who will be reading your essay will help you tailor your writing style, tone, and level of complexity to effectively communicate your ideas. Consider the background knowledge, interests, and beliefs of your audience to ensure that your essay is accessible and engaging.
- Start by identifying the demographic characteristics of your audience, such as age, education level, and background.
- Consider their prior knowledge on the topic. Are they familiar with the subject matter, or do you need to provide additional context?
- Think about their potential biases or preconceived notions. Are there any potential challenges or objections you need to address?
By understanding the purpose and audience of your expository essay, you can craft a well-written and relevant piece that effectively communicates your ideas and engages your readers.
Choosing the Right Topic and Gathering Information
One of the crucial steps in writing an outstanding expository essay is selecting a compelling topic and gathering relevant information. The topic should be interesting, relevant, and align with the purpose of your essay. It’s important to choose a topic that you are passionate about and have a good understanding of, as it will make the research and writing process more enjoyable and easier.
Start by brainstorming different ideas and concepts that you find intriguing. Consider your personal experiences, hobbies, or areas of expertise that you would like to explore further. You can also look for inspiration from current events, popular trends, or societal issues that grab your attention. Once you have a list of potential topics, narrow it down to the one that has enough depth and scope for exploration.
Once you have chosen a topic, it’s time to gather information to support your thesis statement and provide evidence for your claims. Start by conducting thorough research using various sources such as books, scholarly articles, reputable websites, and interviews with experts in the field. Take notes and keep track of the sources you use for referencing purposes.
Tips for Gathering Information: |
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1. Use reliable and credible sources to ensure the accuracy of the information. |
2. Take detailed notes and organize them based on different subtopics or arguments. |
3. Look for different perspectives and opinions on the topic to present a well-rounded view. |
4. Don’t rely solely on internet sources, but also explore books and academic journals. |
5. Use quotation marks or proper citation methods when including direct quotes or paraphrasing information from sources. |
6. Keep track of all the sources you use to avoid plagiarism and provide proper references in your essay. |
By choosing the right topic and gathering relevant information, you lay the foundation for a well-researched and compelling expository essay. Take the time to explore different ideas, conduct thorough research, and organize your findings effectively. Remember, a well-chosen topic and solid information will make your essay engaging and informative for your readers.
Structuring Your Expository Essay
When it comes to composing an expository essay, the way you structure your piece is crucial. Organizing your thoughts and ideas in a clear and logical manner will not only make your writing more coherent and easy to follow, but it will also help you effectively convey your message to the readers.
One effective way to structure your expository essay is to use the traditional five-paragraph format. This format consists of an introduction paragraph, three body paragraphs, and a conclusion paragraph. Each paragraph serves a specific purpose and contributes to the overall development of your essay.
The introduction paragraph is where you grab the attention of your readers and provide them with a brief overview of what your essay will be about. It should include a strong thesis statement that clearly states your main argument or point of view.
The body paragraphs are where you present your evidence, provide supporting details, and analyze your topic. Each body paragraph should focus on one main idea or aspect of your topic. Start each paragraph with a topic sentence that introduces the main point, and then provide examples, facts, or explanations to support your argument.
In the conclusion paragraph, you should summarize your main points and restate your thesis statement. Avoid introducing new information or arguments in this section. Instead, focus on leaving a lasting impression on your readers and reinforcing the main ideas discussed throughout your essay.
Remember to use appropriate transition words and phrases to ensure a smooth flow between paragraphs and ideas. Examples of transitional phrases include “firstly,” “in addition, “finally,” and “on the other hand,” among others.
By following a well-structured approach, you can effectively organize your expository essay and make it engaging and informative for your readers. Take the time to plan your essay, identify your main points, and arrange them in a logical order. With a clear structure, your expository essay will be a powerful piece of writing that effectively conveys your ideas.
Enhancing Clarity and Coherence
Creating a clear and coherent expository essay requires skillful use of language and organization. By carefully selecting words and arranging ideas logically, you can ensure that your essay is easy to understand and follow.
Word Choice: One of the most effective ways to enhance clarity is through thoughtful word choice. Consider using precise and specific language to convey your ideas. Instead of using general terms, opt for more descriptive words that accurately depict the information you are presenting.
Logical Organization: Coherence in your essay can be achieved through proper organization. Present your ideas in a logical progression, ensuring that each paragraph flows smoothly into the next. Use transitional words and phrases to connect your thoughts and guide the reader through your essay.
Consistent Structure: To enhance clarity and coherence, maintain a consistent structure throughout your essay. Use a clear introduction to outline your main points and a strong conclusion to summarize your findings. Each body paragraph should focus on a single topic and provide sufficient evidence and examples to support your claims.
Effective Transitions: Transitions are essential in ensuring a cohesive flow between ideas and paragraphs. Use transitional words and phrases such as “however,” “in addition,” and “furthermore” to link your ideas and create a smooth transition between different sections of your essay.
Eliminating Ambiguity: To enhance clarity, it is crucial to eliminate any ambiguity or confusion from your writing. Be precise in your language and avoid using vague terms or jargon. Make sure your ideas are clearly articulated and leave no room for misinterpretation.
Proofreading: Finally, closely edit and proofread your essay for clarity and coherence. Look for any unclear sentences or confusing phrases and revise them for greater clarity. Ensure that your ideas are presented in a logical and coherent manner, leaving no room for confusion.
By enhancing clarity and coherence in your expository essay, you can effectively communicate your ideas and engage your readers. Thoughtful word choice, logical organization, consistent structure, effective transitions, and careful proofreading all play important roles in creating a clear and coherent essay that will leave a lasting impact.
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Home — Essay Samples — Nursing & Health — Digestive System — The Digestive Process of Food in the Alimentary Canal and Accessory Digestive Organs in the Digestive System of the Human Body
The Digestive Process of Food in The Alimentary Canal and Accessory Digestive Organs in The Digestive System of The Human Body
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Published: Dec 11, 2018
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The digestive system is a complex network of organs and tissues that work together to break down and absorb nutrients from the food we consume. This system exemplifies the interdependency and interconnectivity between structure [...]
Ehrlich, S. D. (2013). Microbes in the gut: probiotics, prebiotics, symbionts to control inflammatory conditions. Immunity, inflammation, and disease, 1(2), 109-123.Ensminger, A. H. (2018). Foods & Nutrition Encyclopedia, 2nd [...]
Achlorhydria occurs when there’s an absence of hydrochloric (HCl) acids in the stomach. It’s a more severe form of a hypochlorhydria, a deficiency of stomach acids. Both conditions can impair the digestive process and lead to [...]
The mouth chews the food using the teeth to tear, chew and grind the food. The tongue has skeletal muscles (involuntary muscles) that move the food around the mouth for efficient mechanical digestion. Salivary glands beneath and [...]
There are several organs and tissues that make up the female reproductive system, these include that ovaries, fallopian tubes, uterus, vagina, vulva, mammary glands and breasts. They are also involved in producing and [...]
Volvulus is a blockage of the intestine as a result of abnormal twisting. Sigmoid volvulus occurs when the sigmoid colon becomes twisted and it is the most common form of volvulus. Cecal volvulus refers to the twisting of the [...]
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Essay # 1. Organs of Digestive System: Digestion means simplification of complex foods. It is the process of breaking various foodstuff into simple products. The complex foods like carbohydrates, proteins and fats are converted into glucose, amino acids and fatly acids respectively by the action of digestive enzymes.
Chemical digestion is the mechanism involving processing the food bolus with the help of different substances produced by the human body such as saliva or digestive juices (Martinez, 2014). Due to chemical digestion, the organism manages to extract the nutrients that need to be absorbed. Mechanical digestion is the process that involves ...
That is why the proper functioning of the human digestive system serves as the basis for full-fledged life support during the main processes in the digestive tract. Moreover, the digestive system is also responsible for the water-electrolytic balance, regulating the rate of fluid intake from food. The functions of the gastrointestinal tract can ...
The digestive system is divided into two main parts: the alimentary canal (or gastrointestinal tract) and the accessory digestive organs. The alimentary canal is a continuous, coiled, hollow muscular tube that winds through the body, extending from the mouth to the anus. It includes the mouth, pharynx, esophagus, stomach, small intestine, and ...
The Stomach. The stomach is an organ of digestion located between the esophagus and the duodenum on the left upper part of the abdominal cavity. It is a muscular, elastic pear-shaped bag lying just below the diaphragm. It is made up of five layers. The innermost layer is referred to as mucosa.
Overview of the Digestive System. The digestive system is responsible for breaking down food into nutrients that the body can use. It consists of the mouth, esophagus, stomach, small intestine, and large intestine, each with its own specific function to facilitate the digestion and absorption of nutrients. Structure-Function Relationship in the ...
Mouth. The mouth chews the food using the teeth to tear, chew and grind the food. The tongue has skeletal muscles (involuntary muscles) that move the food around the mouth for efficient mechanical digestion. Salivary glands beneath and in the back of the tongue secrete saliva which allows for easier swallowing to begin chemical digestion.
The structure of your expository essay will vary according to the scope of your assignment and the demands of your topic. It's worthwhile to plan out your structure before you start, using an essay outline. A common structure for a short expository essay consists of five paragraphs: An introduction, three body paragraphs, and a conclusion.
human digestive system, system used in the human body for the process of digestion. The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into forms that can be absorbed into the bloodstream.
The Digestive System. When you enter the body through the brain, you come across the first component of the digestive system—the hypothalamus—a section of the brain the size of an almond. The hypothalamus controls the temperature of the body, hunger, thirst, fatigue, and circadian cycles—A daily cycle of biological activity based on a 24 ...
The digestive system in the human body is important for breaking down substances like proteins, fats, carbohydrates, and converting food into energy for us. Clean, fresh water is a necessity for everyone and living/ non-living organisms because we need it to survive. Water pollution is ruining our lakes, streams, and more due to toxins and ...
The Digestive System: An Introduction. The digestive system is a group of organs that work together to change the food we eat into energy our bodies can use. It's like a food processing factory inside our body. It includes the mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus. The liver and pancreas also play a big ...
It enables the organism get nutrients which are important for functioning. The most important organs of the human digestive system are mouth, salivary glands, pharynx, oesophagus, stomach, liver, pancreas, gallbladder, small intestine, large intestine and anus (Grosvenor & Smolin, 2012). Food travels through the digestive system and each organ ...
The gastrointestinal system is one of the critical systems found in the human body. The gastrointestinal structure consists of a set of organs which labor collectively to transform food into energy and nourishment for the body. Once food enters and leaves the mouth or oral cavity, it is conveyed through an extensive tube known as the ...
The Chymotrypsin Enzyme. A digestive enzyme called chymotrypsin catalyzes the breakdown of peptide bonds in the ileum and duodenum to produce polypeptides and amino acids that the body can use. It is produced as chymotrypsinogen, an inactive form, by the acinar cells in the pancreas. Chymotrypsin is a digestive aid and anti-inflammatory agent ...
Get a personalized essay in under 3 hours! Expert-written essays crafted with your exact needs in mind. Absolutely FREE essays on Digestive System. All examples of topics, summaries were provided by straight-A students. Get an idea for your paper.
An expository essay is a genre of writing that explores and explains a specific topic in a logical and straightforward manner. The main goals of expository writing are to inform the reader, explain a subject, or describe a topic in a way that is accessible and comprehensible. You're not trying to confuse or overwhelm a reader with all of your ...
An expository essay is an essay that communicates factual information. Broadly, this type of writing is known as expository writing. Expository essays rely on different structures to communicate their positions, like compare and contrast, process essays, and analyzing cause and effect. Expository writing is one of the four main types of writing.
Summary of main ideas. Final thought. Exercise 1. e following essay question:Explain how an alternate form of energy is being used succ. ssfully in the world today.Identify these elements i. the following model essay.Introdu. ion, body, and conclusion.The three mai. parts of the introduction.The three main p.
The digestive system is a group of organs that work together to convert food into energy and basic nutrients to feed the entire body. Food passes through the GI tract inside the body that connects all of the organs. To achieve the true purpose of getting the body basic nutrients and energy the other six functions of the digestive system take ...
Cater to your audience: Tailor your language, tone, and examples to suit the preferences and background of your intended audience. Use relatable and engaging references to convey your message effectively and establish a connection with your readers. 6. Emphasize clarity: Clarity is key when it comes to expository writing.
The major digestive organ the small intestine, an organ that is actually longer than the so called large intestine. The mall intestine is a muscular tube coming from the pyloric sphincter to the ileocecal valve, Consisting of 3 subdivisions the duodenum, jejunum, and ileum, contributes five percent, almost forty percent, to almost sixty percent of the length of the small intestine.