Question

mention the role of the following 1) pepsin
2)saliva
3)villi

Answer 1

1) pepsin help in the digestion of protein in our body
2) saliva help in the digestion of starch in our mouth
3) villi are present In small intestine and absorb nutrients from food

Answer 2

main role of the following are: -
1) pepsin -It helps in digestion of protein.
2) saliva -It moistens the food and helps in digestion of carbohydrates.
3) villi -It is used to increase the rate of absorption of nutrients