Question

2.(i) Draw a well labeled diagram of human digestive system

(ii) Describe the role of following in digestion.

a) Bile

b) Salivary amylase

c) HCl​

Answer 1

Answer:

Bile is a fluid that is made and released by the liver and stored in the gallbladder. Bile helps with digestion. It breaks down fats into fatty acids, which can be taken into the body by the digestive tract.

Amylase is a digestive enzyme that acts on starch in food, breaking it down into smaller carbohydrate molecules. ... First, salivary glands in the mouth make salivary amylase, which begins the digestive process by breaking down starch when the food is chewed. It converts the starch to maltose, a smaller carbohydrate.

The role of HCL is to destroy the harmful micro organisms present in the food that enters to the stomach. It also facilitates the action of pepsin which is also a gastric juice