Pepsin is an Enzyme that breaks down proteins during digestion. It is produced by the walls of the stomach. It requires a strongly acidic environment such as that present in the stomach. It digests large protein molecules into smaller protein molecules (smaller polypeptides) and is therefore a protease - an enzyme that breaks down a protein. In the stomach, chief cells release pepsinogen. This zymogen is activated by hydrochloric acid (HCl), which is released from parietal cells in the stomach lining. The hormone gastrin and the vagus nerve trigger the release of both pepsinogen and HCl from the stomach lining when food is ingested. Hydrochloric acid creates an acidic environment which allows pepsinogen to unfold and cleave itself in an autocatalytic fashion, thereby generating pepsin (the active form). Pepsin will digest up to 20% of ingested carbon bonds by cleaving preferentially after the N-terminal of aromatic amino acids. Pepsin is stored as pepsinogen so it will only be released when needed, and does not digest the body's own proteins in the stomach's lining.
The bile in the stomach,which has a acidic base,by this process it breaks down the food in your stomach
the stomach cus acids help break down the food and the mouth to because the saliva has chemicals that help too.
The stomach has a slightly thicker wall than the small intestine as the stomach secretes acids that are used to break down food, while the small intestine's job is just to transport the food through the digestive system
The stomach is the main organ responsible for digesting proteins. It secretes enzymes like pepsin and hydrochloric acid to break down proteins into smaller peptides and amino acids for absorption in the small intestine.
they break down food and absorb the nutrients so our body can use it.
Those are called enzymes.
the stomach churns the food making it into smaller particles. also there are enzymes in the stomach that break up protiens and can only survive in stomach acid. they do this so that the food will not burn the small intestine. Bile is released from the liver into the stomach that help to break up fats. as the food passes through the small intestine its nutrients are absorbed by the villi and are taken into the blood stream.
The stomach contains enzymes that break down protein.
The stomach and small intestine both help with digestion. However, the stomach breaks down the food with acids and is mostly a large cavity, while the small intestine absorbs the nutrients and is a long winding path.
The order is as follows: Stomach, small intestine, large intestine.
The reason the stomach produces pepsin is because pepsin is active in the acidic environment of the stomach, which is needed to break down proteins into peptides. Trypsin, produced in the small intestine, functions in a less acidic environment and helps further break down peptides into smaller molecules for absorption. This specialization allows the different digestive enzymes to work effectively in their respective environments.
The small intestine.