System Physiology Animals MCQ - Attempt Quiz Here!

System Physiology Animals MCQ

Q. 1 The plasma membrane of the intestine is highly folded into microvilli. The main function of Microvilli is -

1. To Secrete digestive enzymes
2. To help in blood circulation
3. To increase its absorptive surface
4. For the ageing of worn-out cells

Q. 2 Homeostasis of body fluid volume is maintained by regulating the rate of water loss in urine. Following are some statements about the formation of dilute urine:

A) High osmolarity of urine is due to increased sodium, chloride and urea levels.

B) Osmolarity of fluid in the tubular lumen fluid decreases.

C) ADH controls the concentration of urine.

D) Osmolarity of fluid decreases in the ascending and descending limb of loop of Henle.

E) Ascending limb of loop of Henle reabsorbs ions from tubular fluid.

Which of the above statements are CORRECT?

1. B and C
2. A, B, C and E
3. A, C, D and E
4. B and E

Q. 3 Which respiratory centre regulates the rate of breathing and limits inspiration, thus known as an inspiratory switch-off centre?

1. Medullary inspiratory neurons
2. Medullary expiratory neurons
3. Apneustic area in the lower pons of brain stem
4. Pneumotaxic area in the upper pons of brain stem

Q. 4 Which one of the following vitamins is NOT absorbed in the small intestine by Na⁺ co-transporters?

1. Thiamine
2. Riboflavin
3. Folic acid
4. Ascorbic acid

Q. 5 Which one of the following vitamins is NOT absorbed in the small intestine by Na⁺ co-transporters?

1. Thiamine
2. Riboflavin
3. Folic acid
4. Ascorbic acid

Q. 6 The plasma membrane of the intestine is highly folded into microvilli. The main function of Microvilli is -

1. To Secrete digestive enzymes
2. To help in blood circulation
3. To increase its absorptive surface
4. For ageing of worn out cells

Q. 7 Homeostasis of body fluid volume is maintained by regulating rate of water loss in urine. Following are some statements about formation of dilute urine:

A) High osmolarity of urine is due to increased sodium, chloride and urea levels.

B) Osmolarity of fluid in the tubular lumen fluid decreases.

C) ADH controls the concentration of urine.

D) Osmolarity of fluid decreases in the ascending and descending limb of loop of Henle.

E) Ascending limb of loop of Henle reabsorbs ions from tubular fluid.

Which of the above statements are CORRECT?

1. B and C
2. A, B, C and E
3. A, C, D and E
4. B and E

Q. 8 Which respiratory centre regulates the rate of breathing and limits inspiration, thus known as an inspiratory switch-off centre?

1. Medullary inspiratory neurons
2. Medullary expiratory neurons
3. Apneustic area in the lower pons of brain stem
4. Pneumotaxic area in the upper pons of brain stem

Q. 9 Following are some statements about the mechanism of stimulation of receptors for touch, pain, vision and warmth that may or may not be correct.

(A) The touch receptor does not require any voltage-gated cation channel for its activation

(B) Light causes the closing of Na channels in the outer segments of rods and cones

(C) Pain sensation is caused by the opening of Na⁺ or Na⁺/Ca⁺⁺ channels in free sensory nerve endings.

(D) The warmth receptor is activated by non-selective anion channels.

Choose the option with both statements as CORRECT.

1. A and C
2. B and C
3. C and D
4. A and D

Q. 10 Which one of the following vitamins is NOT absorbed in the small intestine by Na⁺ co-transporters?

1. Thiamine
2. Riboflavin
3. Folic acid
4. Ascorbic acid

Check Out:

• Previous Year's Papers for CSIR-NET Exam: Attempt Here
• Study Notes for Part A: General Aptitude - Download PDF Here
• Study Notes for CSIR-NET Chemical Science - Download PDF Here
• Study Notes for CSIR-NET Life Science - Download PDF Here

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