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The Digestion Process

            Digestion is responsible for the physical and chemical breakdown of food into small molecules so they can be absorbed by the cells in order to function properly. The body needs all the vital nutrients for the cell functions. From food we get biological molecules such as carbohydrate, proteins and lipids however they are too large to digest and absorbed. The process of digestive system helps the food to travel down the alimentary canal. The digestive system is mostly the alimentary canal which is continuous tube running from the mouth to the anus. The organs which play the part in the digestive system are the mouth where the ingestion starts, oesophagus where the food as bolus travels down the gut with help of peristalsis movement into the stomach. The chemical digestion of food takes place with hydrolytic enzymes. These enzymes are produced by glands which line alimentary canal. Then comes the small intestine and large intestine. The first part of the small intestine is known as duodenum. This is where the final chemical of food takes place and the absorption of food also takes place at jejunum and ileum. The food is passed down into the large intestines for the absorption of water and feces are formed which is stored in rectum before excretion from the body. The accessory structures which contribute in the digestive system are salivary gland, the liver, gall bladder, and pancreas. They all are essential for enzyme activity for the chemical digestion. These all are important organs involved in the digestive system.
             In order to know how the digestion of food takes place in the digestive system, it is required to know the biological contents in the food we consume. A meal of fish and chips would suggest a diet high in fat and proteins but that's not the only nutrients found in the meal once coated with batter and fired in peanut oil. This adds up more fat content and carbohydrates.
             The fist process after ingestion of food is mastication.


Essays Related to The Digestion Process

1. Locomotion and Digestion

... -soluble, work like detergents, dispersing the large drops of fat into a fine emulsion of smaller droplets. The process of emulsification produces a greater surface area of fat upon which the lipase enzymes can act, and allows the digestion of fats to proceed more rapidly. After it is produced in the liver, bile is stored and concentrated in the gallbladder. The arrival of fatty food in the duodenum triggers a reflex that stimulates ... the gallbladder to contract, causing bile to be injected ... ...

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2. Digestion

... cells and organisms, which threaten the body (in a process called "phagocytosis"0. The liver is the largest of the body's glands and is responsible for several important functions. Weighing about three pounds, the red-brown organ features a high degree of vascularity, which is responsible for its dark colour. Located mostly on the right side of the abdominal cavity, just above the duodenum, the liver aids in the digestion of fats by secreting bile ... into the duodenum. The liver also destroys red ... ...

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3. The Digestive System

... so it can be used when it is needed the most. The cystic duct, which is connected to the common hepatic duct, is the common area for gallstones. As the bile is led down to the intestines through the common bile duct, the pancreas adds more enzymes. The pancreas which is within the "C"-shaped curve of the duodenum makes the enzymes that are vital in the digestion process. These enzymes help to further break down ... the chyme into chemical energy for the body. These enzymes include sucrase (for ... ...

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4. The Gravimetric Determination of Sulfate

... of this experiment was to determine the percent of sulfate ion in an unknown sample through the process of digestion. Each person in the lab section did the experiment and gained a percent of the sulfate ion. Then statistics was used to compare final percents gained by the class compared to the actual percent sulfate ion in the experiment and errors in the experiment were determined. Introduction In chemistry ... up in the solution and there is excess of the reagent being added. The next step is digestion this is actually making the new compounds crystals larger by heating the compound j...

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5. Exploration of the Raw Foods Diet

... is the process of removing juice from fruits and vegetables. To juice, the produce is washed before you fit it in the chamber of the juicer and it goes through a pureeing process. The produce doesn't have to be peeled as long as its washed. The reason to juice is to get raw nutrients from the fruits ... and vegetables. There is a huge difference between cooked food and raw food. According to World Wide Health, "when heat is applied to food we start to destroy the ... stores to find ingredients. According to Caroline La of Mind Body Green, raw foods diets are bad for thyroid health. Thyr...

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6. The Chemistry of Happiness

... that regulate various functions in the body. First, the autonomic nervous system (ANS) is a part of the inner structure of the brain and is a part of the nervous system. It controls and manages involuntary body functions, such as digestion, blood flow, breathing and heartbeat. It also controls all the muscles, organs and glands. When the system malfunctions, it may lead ... our brains to our emotions? The mystery behind the gap that connects the brains to the emotions can be represented in one simple word, neurotransmitters. Neurotransmitters are the mastermind of communication; they are...

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7. The theme of food in one day in the life of Ivan

... two bowls that Shukhov has finagles for his brigade from the kitchen, he has the right to a second bowl. Following the ritual, he eats the first bowl in the way he regularly does, chewing every mouthful thoroughly and slowly and preparing it possible for the most complete digestion. However, he has to eat the meal faster in order to show Pavlo that he is ready to be served ... for the second bowl. With the anticipation of the second bowl, the first bowl now seems like an appetiser to Shukhov; he does not feel as full as he ... usually does after one bowl of mush. Moreover, he scrapes e...

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8. The Elderly

... to sun. BRAIN/NERVOUS SYSTEM -loses some capacity for memorization and learning as cells die -becomes slower to respond to stimuli (reflexes dull) -Process accelerated by overuse of alcohol and other drugs, repeated blows to the head. SENSES -becomes less sharp with the loss of nerve cells -Process accelerated by smoking, -repeated exposure to loud noise. LUNGS -becomes less effective as elasticity decreases ... nutrients may not be absorbed as rapidly or in as great quantities as they once were. • There is a reduced amount of gastric hydrochloric acid that aids in digestion making les...

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9. The Importance Adenosine Triphosphate (ATP)

... for their function. When an ATP molecule attaches to each myosin head it causes it to become detached from the actin filament, then hydrolysis of the ATP provides the energy for the myosin head to return to its original position. This is a continual process as long as the muscle receives nervous stimulation. (4) With some stages of muscle contraction being dependant on ATP ,we can say that ... all living organisms require to make proteins) in from the soil via active transport. " In humans, active transport takes place during the digestion of food in the small intestine. Carbohydrates a...

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