Question

State the role of the following in human digestive system:

a. Digestive enzymes b. Hydrochloric acid c. Villi​

Answer 1

Role of following in human digestive system.

Explanation:

• Digestive enzymes:- they play a key role in breaking down of food , they speed up the chemical reactions, they turn nutrients into substances that digestive tract can absorb. Saliva has digestive enzymes in it also the pancreas, gallbladder and liver has enzymes.
• Hydrochloric acid:- it is an essential acid ,it helps destroy bacteria as well as other harmful organisms, it converts inactive pepsinogen into active pepsin, and helps metabolize proteins in our stomach.
• Villi- increases the surface area of the intestine for food absorption , it has blood vessels, digested food is absorbed and transferred to the cells of the body.