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Digestion Essay Topics & Paper Examples

Microelectronic Pill

1: ABSTRACT The invention of transistor enabled the first use of radiometry capsules, which used simple circuits for the internal study of the gastro-intestinal (GI) tract. They couldn’t be used as they could transmit only from a single channel and also due to the size of the components. They also suffered from poor reliability, low sensitivity and short lifetimes of the devices. This led to the application of single-channel telemetry capsules for the detection of disease and abnormalities in the GI tract where restricted area prevented the use of traditional endoscopy. They were later modified as they had the disadvantage of using laboratory type sensors such as the glass pH electrodes, resistance thermometers, etc. They were also of very large…

Digestion (Summary) Igcse Level

IN THE MOUTH: Food is mechanically cut by incisors and canines, chewed by molars and premolars, and mixed with saliva by the tongue. The saliva has been produced by salivary glands, which pour it into the mouth through salivary ducts. This process of introducing food into the mouth is called ingestion. Chewing breaks food into smaller particles so that chemical digestion can occur faster. This cutting and mixing is called mastication. Moreover, food is chemically digested by salivary amylase (carbohydrase) in saliva which is an enzyme (biological catalyst) which breaks down the insoluble polysaccharide starch to the soluble simpler sugar called maltose. In digestion, food molecules are broken down by hydrolysis reactions (breakdown with water). Saliva also contains mucus, which…

Digestion/ Absorption and Homeostasis

In order to survive, our bodies must bring in energy and nutrients for the cells of the body through eating and digestion of food. To be carried to the cells of the body by the blood stream, food must be broken down to molecules. This breaking down of food into molecules, small enough to be absorbed into and carried through the blood stream, is carried out by the digestive system through the process of digestion and absorption. Digestion is the process of turning food into usable sources of energy. During the process of absorption, nutrients that come from the food, including carbohydrates, proteins, fats, vitamins, and minerals, pass through channels in the intestinal wall and into the bloodstream. “Organs that…

Role of energy in the body

Energy is necessary to circulate blood, lymph and tissue fluid throughout the body; it is necessary for breathing and taking in oxygen; it is necessary for making new cells for carrying out growth and repair; it is used to transmit nerve impulses so that it can respond to changes in the environment; and it is needed to build different complex molecules such as enzymes and hormones from the simple molecules produced after digestion of food. Cardiovascular system The heart is a muscular pump which forces blood around the body through a system of blood vessels, namely arteries, veins and capillaries. Blood carries dissolved oxygen to the body cells and at the same time removes the waste products of respiration, carbon…

Rough Outline: Conjoined Twins

Definition and Statistics * Identical twins that are physically joined at birth * Referred to as Siamese twins which comes from the famous twins Eng and Bunker who were born in Siam (Thailand) in 1811 Twinning occurs in one of two ways: 1) a woman releases two eggs instead of the usual one 2) a woman produces only one egg that divides after fertilization In the case of conjoined twins * A woman only produces one single egg, which does not fully separate after fertilization * Developing embryo starts to split into identical twins during the first few weeks after conception but the process stops before its complete * Another theory suggests that two separate embryos may somehow fuse together…

Animal Digestion System

This essay focuses on the digestive system of ruminant animals like cattle, sheep, and goats. Ruminant animals are hoofed mammals that have a digestive system which enables them to utilize energy from fibrous plant material better than other herbivores. Unlike monogastric animals such as pigs and poultry, the digestive system or ruminants is designed to ferment feedstuffs and provide precursors for energy for the animal to use. Ruminant Digestive system The digestive system of ruminants like cattle enables them to efficiently use high roughage feedstuffs, including forages. Their digestive system is composed of the mouth, tongue, gall bladder, pancreas, the four compartment stomach (rumen, reticulum, omasum, and abomasum), salivary glands, the small intestine (duodenum, jejunum, and ileum), esophagus and the…

Zachary’s Story

1. An ulcer starts by eroding the mucosa of the G.I tract wall. What functions of digestion or reabsorption might be lost if this layer is no longer functional? What functions will be compromised if the ulcer eats through the submucosa and then the muscularis? Absorption would not happen correctly because some of the ingested and secreted may seep out of the lumen. This could also create a pathway of entry for pathogens, if the ulcer ate its way through to the muscularis mucosa and lose some control of defecation. 2. If Zachary has a peptic ulcer affecting his stomach and or duodenum, which components of the peritoneum will be affected? If the ulcer eats a hole into the wall…

Enzymes are important for food digestion

Enzymes are protein molecules produced y the living cells as “instructed” by genes on the chromosomes. Enzymes referred to as biological catalyst – biological molecules that catalyze metabolic reactions. A catalyst is defined as an agent that speeds up a chemical reaction without being consumed in the process (Burton, G. R. W. , 2004). Enzymes are important in digestion of food in our body because they act as the vehicle in the chemical reactions of breaking up the food elements. If the enzymes are not present in the digestion of the food, the energy of the chain reaction will face different problems such as acidity, diarrhea, bloating and burning sensation and it also helps strengthening the immunity of the body….

Digestion: Describe the digestion of a burger

Digestion A burger is broken down mechanically by biting into it. The food in the mouth sets off salivary glands that secrete salivary amylase, which breaks down amylase in the burger. When the food is broken down enough, the tongue shapes the food in a bolus, or a ball. The bolus is pushed back to the pharynx at the back of the throat. The food stimulates the opening of the flap so the good goes down the esophagus, rather than the windpipe. Because of peristalsis, rhythmic waves created by muscles in the throat, the food slides easily down the digestive tract. Salivary amylase continues to break down the starch all the way down the esophagus. When the burger reaches the…

Reaction Paper in Food and Nutrition

1. What are the dishes served at World Buffet? Group these dishes according to its main nutrients. Different foods are served at World Buffet just like a Japanese cuisines like sushi, maki and tempura. There are also western foods that are served at World Buffet just like US Roast Beef, Spanish Paella and Mexican Burritos. All of them are examples of foods that are served in a World Buffet. Desserts are also present in a World Buffet and these sweets are cakes, candies, brownies, fruit salads, and many more. Drinks are also there to make you feel refreshed and they different kinds of beverages like water, smoothies, shakes, juice, lemonades and green tea to lessen the “umay” (sorry ma’am there…

Apa outline

This course introduces students to the world of human nutrition. Students examine the components included in a healthy, balanced diet and develop strategies to meet their changing nutritional needs throughout the various stages of life. Specific topics for the course include the digestion process, functions and health benefits of specific nutrients, weight management and fitness, and the effects of nutritional deficiencies. Policies Faculty and students will be held responsible for understanding and adhering to all policies contained within the following two documents: University policies: You must be logged into the student website to view this document. Instructor policies: This document is posted in the Course Materials forum. University policies are subject to change. Be sure to read the policies at…

Human Digestion

The salivary glands are the first to react in the digestive process, which are usually triggered by either the sight or the smell of food. Food enters the digestive tract through the mouth where the teeth, tongue, and salivary glands help moisten and break down the food within minutes. The food then becomes something called a bolus, which will travel through the pharynx, then through the esophagus, and into the stomach. As the food travels through the pharynx the epiglottis is in place to prevent food from entering the lungs. Once the bolus enters the stomach it is broken down with acid secretions. The food is partially digested within the stomach. The bolus then becomes chyme (a semiliquid food). Chyme…

Human digestion

The salivary glands are the first to react in the digestive process, which are usually triggered by either the sight or the smell of food. Food enters the digestive tract through the mouth where the teeth, tongue, and salivary glands help moisten and break down the food within minutes. The food then becomes something called a bolus, which will travel through the pharynx, then through the esophagus, and into the stomach. As the food travels through the pharynx the epiglottis is in place to prevent food from entering the lungs. Once the bolus enters the stomach it is broken down with acid secretions. The food is partially digested within the stomach. The bolus then becomes chyme (a semiliquid food). Chyme…

Enzyme catalysis lab

Enzyme catalysis was observed in order to analyze how changes in temperature, pH, enzyme concentration, and substrate concentration affected an enzyme-catalyzed reaction. This experiment analyzed the rate of enzyme-catalyzed reactions and observed the correlation between catalase activity and products formed. It was found out that the rate of an enzyme-catalyzed reaction starts off rapidly, decreases, and levels off or completely stops, and can be further affected by environmental factors, which play a crucial role in regulating enzymes and metabolic processes. Based on this experiment and the data collected one is able to conclude that the optimal environment in which this specific catalase is able to function is around 40°C and in a pH around 7. This type of environment allows…

The physiology of two named body systems

According to Wright (2007), we need energy for everything we do. Energy can be found in different forms including chemical energy, electrical energy, thermal energy, radiant energy, mechanical energy and nuclear energy. We use energy all the time including when we are sleeping. We use energy for our muscle activity, new cells and blood circulation. (Wright, 2007) We get energy from the foods that we eat. Metabolism is a chemical activity which uses cellular respiration. (Wright, 2007) Aerobic respiration is respiration with oxygen present. (Wright, 2007) The formula for cellular respiration is below: Glucose +oxygen = Energy, carbon dioxide and water. Carbon dioxide and water are the waste products from creating energy. Respiration can happen without oxygen. This process is…

Fetal pig dissection

Through the dissection of the fetal pig, we were able to compare and contrast the structure and functions of the organs to those of a human. We dissected the pig and observed all the exterior and interior structures. The fetal pig’s structure was almost identical to the human body. Since humans and pigs are both mammals, it can be very useful to study the fetal pig. We dissected the pig so that we should see the skeletal and organ structures that we learned about in class. Because pigs are also mammals, their structure is very similar to our own. By doing the dissection, we were able to physically see and touch the anatomy of the mammalian body rather seeing it…

Digestive and Respiratory System Worksheet

Before answering the questions below, log in to ADAM and view the clinical animations for Peristalsis and Gas Exchange. Remember, you may use our text, our discussions, and the internet to write your answers, but be sure to write your answers in your own words and to use correct citations where appropriate! Cutting and Pasting your responses will result in a Zero for this assignment! 1. Trace the path of an oxygen molecule from the air outside you to your tissues. It starts with the oxygen outside then you breathe the oxygen in to your lungs. The oxygen that was in the air absorbs into your blood vessels in your lungs and then attaches to a hemoglobin molecule. The hemoglobin…

Best Meal Ever

Coming home from a long shift from work, my girlfriend greeted me at the front door of our house with a big warm hug and a smile. As we catch up with our day, I smelled the most alluring aroma coming from the kitchen. “I cooked up something special for us today”, she announced excitedly. I follow my nose to the kitchen to find a delicious collection of shrimp, rice, clams, slices of beef and vegetables surrounding a big bubbling pot in the center of our table. Eyes wide open and nostrils flaring, my mouth immediately floods with salivation as I gaze at the most appetizing view. We sit at the table already prepped with plates, silverware, napkins and a…

Genetic Engineering Pros/Cons

Genetic Engineering- Pros/ Genetic engineering can be productive for our present and future societies through the use of the technology in our produce. In today’s society and with the growing concern and interest to stay healthy, genetic engineering composes ways to make the effort slightly less demanding and a little more likely to attain. Through genetic engineering we have the technology to grow produce at larger amounts and faster rates due to the ability to change specific genetic codes in produce. These codes may make a vegetable resistant to local pests which in turn can boost produce supply. Genetic engineering has up to now immensely helped us through health and medicine. We rely on it every time flu season comes…

Fetal Pig Dissection

-Three pairs of exocrine glands in the mouth that secrete saliva; the parotid, submandibular (sub maxillary), and sublingual glands The parotid is the largest and most easily visible of all the salivary glands. The sunbmaxillary is bean shaped and located under the bigger parotid gland. The submandibular gland lies near the jaw line. Glottis -The opening between the vocal cords at the upper part of the larynx. The epiglottis is what covers the glottis during swallowing, to block food/water form getting in the trachea. Epiglottis -The function of the epiglottis in a pig is to prevent food from going into the trachea. Epiglottis is attached to the entrance of the larynx and is made of elastic cartilage. The epiglottis projects…