Question

a)What is the role of the following in digestion

i) HCL

ii) Bile

iii) Anal sphincter

iv) Villi​

Answer 1

Answer:

bile is the correct answer

Explanation:

its a green substance in the stomach

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Answer 2

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HCL :-

• Hydrochloric acid contributes to protein digestion by supplying H+ which activates pepsinogen, the precursor to pepsin.

Bile :-

• It breaks down fats into fatty acids, which can be taken into the body by the digestive tract.

Anal sphincter :-

• This sphincter prevents the acidic contents of the stomach from moving upward into the esophagus. The pyloric sphincter, at the lower end of the stomach.

Villi :-

• The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.