digestion of proteins?
97010
pepsin is the active form of pepsinigen which is secreted by the chief cells in the gastric lumen. Hence, its action in the stomach preceeds any pancreatic enzyme. (pancreatic enzymes are secreted into the dudenum).
37562
The enzymes in the stomach require a certain pH for the amino acids in them to work properly. So, when the pH is optimum, the amino acids are in their correct ionic state. This enables the enzymes to function properly in digestion.
476672
It's a common misconception that your food comes out either as pee or poop or some ratio depending upon it's state of matter before being eaten. In fact, the different sources of energy (i.e. fats and carbs) as well as proteins, undergo catabolism so much that the waste products are nothing like them at all. In any case, feces (poop) is what is never actually absorbed by your body. Anything that is taken up by the body and used is in the urine (pee). This is mostly water, salt, and urea (broken down proteins).
758287
1.) The food you eat is softened by enzymes in your saliva. Your teeth chew and grind the food. Your tongue is used to toss the food.\n2.) The food goes down the trachea. It enters the stomach. The stomach contains an acid called hydocloric acid. This acid can burn a whole through a carpet. It is used to digest food.\n3.) The bile in the liver helps remove any harmful particles from the food. The liver also stores some of the food.\n4.) The food goes through the intestines. The pancreas releases pancreatic juice into the small intestine to further digest the food.\n5.) Some of this food is used for energy and carried to cells through capilaries. The "not needed" part of the food goes through the exit of your body. You secrete this as solid waste called feces. \n_________________________________\nHope this helps! :) :) :) :)
1146724
Starches that are digested into sugars.
600462
Your body will convert it into something it can store more easily: fat.\n\nThe only proteins you secrete in your GI tract are digestive enzymes and some immunological proteins.  You DON'T get rid of excess protein in your feces.  The only time you see protein in your urine is if there is something wrong with your kidneys.  You DON'T get rid of excess protein in your urine.  Note that urea is the by-product of protein metabolism, from--for example--protein being converted to fat, and is not itself protein (it is simply the nitrogenous part of the protein).\n\nYou need to exercise a little common sense here folks.  If you eat 5000 calories a day of 100 % protein, what do think is going to happen?  Do you think you're going to pee and poop out all those excess calories?  Of course not....
227111
The digestion begins in the mouth. The teeth chew & grind the food, so they perform physical digestion. Next, the saliva contains ptyalin, which helps to digest starch into maltose sugar. the food then moves down the oesophagus.\n\nIn the stomach, the gastric juices are secreted, which contain Hydrochloric acid, pepsin (enzyme), gastric lipase and mucus. Pepsin digests proteins into peptones. Gastric lipase breaks down fat molecules. The partially digested food then goes into the duodenum. Here, bile and pancreatic juice are secreted. The pancreatic juice contains trypsin and pancreatic amylase. The bile emulsifies the fat. The trypsin digests proteins, while the emylase digests breaks down the starch. Finally, the walls of the ileum secrete succus entericus, which completes the digestion of carbohydrates into glucose, proteins into amino acids and fats into fatty acids.
499853
Amylase.  It's found in the mouth, as well as stomach and small intestine.
609384
the food you eat has a large variety of chemical features, so you need a lot of different enzymes to break down all the different types of chemical structures that your food contains so your body can effectively process it.
742541
Cellulose is not digested by the human intestine. It is fiber. It provides bulk and helps push the mass through.
644704
I agree with the above answer--- proteins.\neverything that we eat is made up of the basic amino acids or protein that is how we are able to digest them or consume them.
186844
The exact same way it does a carrot, cookie, cheese... and everything else you eat.\n\n\n\nIn humans, digestion begins in the mouth where food is chewed with the teeth. The process stimulates exocrine glands in the mouth to release digestive enzymes such as salivary amylase, which aid in the breakdown of food, particularly carbohydrates. Chewing also causes the release of saliva, which helps condense food into a bolus that can be easily passed through the esophagus. The esophagus is about 20 centimeters long. The food is pushed down by a movement called peristalsis, which is the wave-like contraction of smooth muscle tissue characteristic of the Digestive system.\n\nThe food then goes to the stomach when it passes through the cardiac sphincter. In the stomach, food is churned and thoroughly mixed with hydrochloric acid and other digestive enzymes with digestive fluid to further decompose it chemically for a few hours. As the acidic level changes in the stomach and later parts of the digestive tract, more enzymes are activated or deactivated to extract and process various nutrients.\n\nAfter being processed in the stomach, food is passed to the small intestine via peristalsis. It passes through the pyloric sphincter and enters the first 10 inches of the small intestine, the duodenum, where it is further mixed with 3 different liquids, which are bile (which helps aid in fat digestion), pancreatic juice (made by the pancreas), and intestinal juice. They also add several enzymes: maltase, lactase and sucrase, to process sugars. (Bile also contains pigments that are by-products of red blood cell destruction in the liver; these bile pigments are eliminated from the body with the feces.) Most nutrient absorption takes place in the small intestine. The nutrients goes through the small intestine's wall (small, finger-like structure, that is called villi). The blood, which has absorbed nutrients, is carried away from the small intestine via the hepatic portal vein and goes to the liver for filtering, removal of toxins and help processing of nutrients.\n\nAfter going through the small intestine, the food then goes to the large intestine. The large intestine has 3 parts: the cecum (or pouch that forms the T-junction with the small intestine), the colon, and the rectum. In the large intestine, water is reabsorbed, and the foods that cannot go thorugh the villi such as fiber, can be stored in large intestine. Fiber helps to keep the food moving through the G.I. tract. The food that cannot be broken down is called feces. Feces is stored in the rectum until it is expelled through the anus
917668
Hi there !\nWhat do you mean by the question ? \nYou expect somebody to describe the "entire digestion" and the "metabolism mechanism" of the Human body in this column ?\nBetter verify the "Book of Physiology by Guyton" or "Chatterjee"..they have given beautiful descriptions ! \nbest wishes !
1105239
Lactase is the enzyme in the small intestine that digests lactose (the naturally occurring sugar in milk). A few children and many people after childhood do not produce sufficient lactase, which impairs the body’s ability to digest milk.\nMore Info\nhttp://www.eastherb.com/Enzyme_c526/Enzyme
40328
Proteins, including enzymes.
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proteins-amino acids, nucleic acids-nucleotides, carbohydrates (sugars)-glucose, and lipids-gylcerol and fatty acids
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chemical digestion is where your stomach dissovles the food in your mouth by saliva, or when the enzymes and bile break it down in the stomach.\n\nmechanical digestion is when you chew the food using your teeth, adn when your esophagus swallows the food using perastalsis.