Question

9. State the role of the following in human digestive system (i) digestive enzymes (ii) hydrochloric acid (III) villi​

Answer 1

Answer:

i) digestive enzymes are present in stomach namely : pepsin, HCL (and mucus)pepsin is a protein digesting enzyme

ii)HCL helps to prepare acidic medium for Pepsin to act.

iii) Villi are finger like projections present in small intestine for absorbing different substances important for the body .

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Answer 2

Explanation:

i. Digestive enzymes :-

Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.

ii. Hcl acid :-

Hydrochloric acid helps your body to break down, digest, and absorb nutrients such as protein. It also eliminates bacteria and viruses in the stomach, protecting your body from infection.

iii. Villi :-

Villi are the tiny fingers like structure in the small intestine which gives a large area for digestion The structure of the small intestine is designed for absorption of nutrients. The inside of the small intestine is lined with villi that absorb nutrients from the liquid mixture called chyme produced in the stomach from the food we eat.