Role of HCl

Q.

The stomach secretes gastric juice, which contains hydrochloric acid. What is its function ?

Q.

Gastric juice contains

(a) HCl and pepsin

(b) pepsin and trypsin

(c) trypsin and HCl

(d) amylopsin and pepsin

Q. State the function of the following
(a) pepsin
(b) HCI
(c) Bile
(d) Saiva

Q. Breast milk at room temperature can be stored for

1. 4 hrs
2. 8 hrs
3. 12 hrs
4. 24 hrs

Q.

If hydrochloric acid is so strong that it can break complex food molecules, why does it not affect the walls of stomach?

1. Pepsin is basic in nature which neutralizes HCl and prevents damage to stomach.

2. Stomach is internally protected by mucous membrane which prevents the action of HCl.

3. Salivary amylase secreted in the mouth still remains in the bolus which prevents damage to the stomach.

4. Pancreas release certain enzymes which mix with the food and prevents the stomach walls.

Q.

____ helps in the protection of mucosa from HCl

1. Pepsinogen

2. Mucus

3. Gastric lipase

4. Kupffer cells

Q. Replacement of cells of skin takes place in

1. 1 - 2 days
2. 2 - 4 days
3. 1 - 2 weeks
4. 4 - 5 weeks

Q. Which of the following is correct about the bile of rabbit?

1. It is synthesized by gall bladder and also stored there.
2. It is an enzyme which emulsify the fats.
3. It contain bile salts and bile pigments.
4. Bilirubin present in it is decomposed fats.

Q. Fill in the blanks from the list of words given below:
(carbohydrate, fat, protein, starch, sugar, Vitamin A, Vitamin
C. roughage, balanced diet, obesity, goitre)
Egg yolk is rich in _____ and egg albumin is rich _____.

Q. Match List I with List II and select the correct answer using the codes given below the lists:

	List-I		List-II
A.	Vitamin	1.	Pepsin
B.	Enzyme	2.	Carotene
C.	Hormone	3.	Keratin
D.	Protein	4.	Progesterone

1. A - 2, B - 1, C - 3, D - 4
2. A - 2, B - 1, C - 4, D - 3
3. A - 1, B - 2, C - 3, D - 4
4. A - 1, B - 2, C - 4, D - 3

Q. Glycerides among the following is/are

1. Cholesterol
2. Steroids
3. fat and oil
4. more than one options