Question

B. Answer Briefly
1. What is bile? Where is it produced? Give its functions.
2. List various steps in the process of nutrition.
3. Name the four different types of teeth found in humans and give their function
4. What are villi? What is their location and function?
5. What are the two roles performed by the small intestine in humans?
6. Where does digestion start in humans?
7. Which part of the alimentary canal is involved in
(a) ingestion of food?
(b) chewing of food?
(c) pushing down of food?
(d) killing of bacteria?
(e) complete digestion of food?
(f) absorption of digested food?
(g) absorption of water?
(h) storage of undigested waste food?​

Answer 1

Answer:

Answer 1.. Bile is a yellow coloured fluid, which is produced from gall bladder. This bile juice secreats it's yellow color in excreation with urine.

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Answer 2

Answer:

bile is a juice which is secreted by liver.

it is produced by liver .

it helps in breaking down of large fat molecules into small

intake. absorbtion. accumulation. egestion .

villi are finger like projection found in small intestine.

it helps in absorbtion of digested food.

small intestine helps in absorbtion and digestion.

digestion start in mouth in humans.

mouth

tongue

tongue

stomach( HCl)

small intestine

small intestine

large intestine

anus

Explanation:

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