Enzymes help speed up chemical reactions, so if enzymes were missing, the body would need to heat up to around 200 something degrees to burn the food eaten. However, seeing as the average body temperature is only 98 degrees, that would be impossible. The enzymes in our body bring the reaction temperature down so that the chemical reaction can happen at a lower temperature.
It's a semi solid mixture of food we ingested. it contains various chemicals and enzymes to start up various processes in digestion and it also serves as a energy supply to the body.
Human saliva is 98% water, which carries electrolytes, mucus, antibacterial compounds and various enzymes. Enzymes begin the digestion process, breaking down some starch and fat.
Pancreas is a dual-function (endocrine+exocrine) gland, which secrets digestive enzymes and hormones.There is no movement involved with pancreas.Pancreas secrets various digestive enzymes, including trypsinogen, chymotrypsinogen, elastase, carboxypeptidase, pancreatic lipase, and amylase; which help in digestion.
The process of chemical digestion starts is your mouth! When you start chewing, your saliva helps break down the food as it goes down the esophagus.
Various enzymes contain various compunds of protiens.
The pancreas secretes bile, a digestive enzyme, into the intestines. Food is broken up and nutrients carried out into the the blood. The pancreas secretes enzymes that include lipases that digest fat, proteases which digest proteins, and amylases which digest starch molecules.
That is a good question! In your stomach, you have very strong hydrochloric acid to assist the digestion. From the third part of duodenum onward, you have alkaline medium to digest the food. Sodium bicarbonate is there in small intestine. You have various enzymes to assist the digestion. You have amylase or ptyalin in your saliva for carbohydrates. You have pepsin in your stomach for digestion of proteins. You have trypsin and chymotrypsin in the intestine to digest the polypeptides from proteins. You have amylase, maltase, lactase, sucrase etc to digest the various types of carbohydrates in the small intestine. You have lipase and bile salts to digest the fats in the small intestine.
I can only give you a brief summary; this is a complicated topic. Digestion begins in the mouth with chewing, proceeds to various forms of chemical digestion by means of hydrochloric acid and various different enzymes, nutrients are absorbed in the small intestine and water is absorbed in the large intestine, after which anything left over is eliminated through the anus.
Competition among various enzymes for same substrate
The brush border of intestinal villi contains various Pep-tidase s. They brake down small Pep-tides into amine acids. Various Bi-sachharidases to spit Maltose, Sucrose and lactose sugars. (Maltese, Sucrase and Lactase are the enzymes.) Small quantity of intestinal lipase to split Fat into glycerol and Fatty acids. So this type of digestion is called as contact digestion and it takes place in small intestine.
proteins
The digestive tract basically breaks down the macromolecules into monomers to be absorbed into the body. Various enzymes are involved in the process of digestion. Digestive tract in humans starts from the mouth and ends at anus.