Chemical digestion occurs where?
In the mouth
Saliva contains the salivary amylase. This enzyme continue to digest the carbohydrates from your food, till neutralized by the the acid in the stomach. Then the enzyme called as pepsin digest the proteins in your food. This enzyme brakes the peptide bond in the proteins to produce smaller pieces called as peptides.
The amount of chemical digestion that occurs in your small intestine depends on your diet. Digestion starts in your mouth. There your teeth perform mechanical digestion and your saliva and thrush starts digesting carbohydrates. In your stomach, you start digesting protein from meat and plant sources. Your small intestine adds chemicals to digest fats and other stuff. Your large intestine continues digestion by digesting complex starches. If you are a vegetarian, about 2/3 of your…
Mechanical Digestion (or physical digestion) is more about the mouth. It's chewing, biting, breaking down, and sofening the food. This is why its called "Mechanical" Digestion. Mechanical digestion involves the pulverizing and crushing of food particles, usually by chewing. Chemical digestion occurs through the secretion of digestive juices.
Mechanical digestion occurs in the mouth as your teeth are "mechanically" breaking up the food. The hydrochloric acid in your stomach continues digestion through chemical means. Also, saliva in your mouth is also an enzyme that is used in digestion, so technically you have both, mechanical and chemical digestion occurring in your mouth.
Chemical digestion occurs int he stomach where acids break down the food turning it into chyme, and also happens in the mouth where saliva mixed with enzymes break food into bolus. It also occurs in the liver, when it produces bile to break down fat, and the liver also breaks down medicine, and small intestine, the small intestine is where the main chemical digestion occurs, the small intestine absorbs all the nutrients into the blood…
Most of the digestion occurs in the stomach and small intestine, however some components are harder to digest and that may occur in the large intestine or with help from the gallbladders bile. Physical digestion occurs in the mouth, by a process called chewing, rendering bites of food even smaller. Chemical digestion begins in the mouth (saliva contains enzymes that begin the chemical breakdown process) and ends in the intestines.