The mouth is the beginning of both mechanical and chemical digestion. Chewing breaks the food into smaller pieces and the saliva wets the food but also adds an enzyme called amylase that begins the digestion of carbohydrates.
In humans most mechanical digestion takes place in the mouth through chewing.
Mouth
Most of the digestion occurs (believe it or not) not in the stomach, but the smaller intestine.
The mouth allows you to ingest food, or take food into your body. In addition, the mouth is the site of the first mechanical and chemical digestion in the GI tract.
The first major site of chemical digestion in frog is their stomach
Most of the digestion occurs (believe it or not) not in the stomach, but the smaller intestine.
Most of the digestion occurs (believe it or not) not in the stomach, but the smaller intestine.
The small intestine is the site of most chemical digestion and absorption in the digestive tract. During absorption, nutrients enter the bloodstream, and the circulatory system can then transport these nutrients to all body cells.
The stomach is the first site of chemical digestion in frogs because it contains gastric juices that are rich in enzymes and acids, specifically pepsin and hydrochloric acid. These substances help break down proteins into smaller peptides, facilitating further digestion. Additionally, the stomach's muscular contractions mix the food with these digestive secretions, enhancing the breakdown of nutrients before they move to the intestines for further digestion and absorption.
The primary site of intracellular digestion are the lysosomes.
dis web site stinks
Its the mouth.........cause saliva breaks down some amount of starch into simple sugars. but its not a very major site..............