Q. No.Which of the following statements is correct?
1. The ascending limb of loop of Henle is impermeable to water
2. The descending limb of loop of Henle is impermeable to water
3. The ascending limb of loop of Henle is permeable to water
4. The descending limb of loop of Henle is permeable to electrolytes
A decrease in blood pressure/volume will not cause the release of
1. renin
2. atrial natriuretic factor
3. aldosterone
4. ADH
Match the items given in Column I with those in Column II and select the correct option given below:
| Column I | Column II | ||
| a. | Glycosuria | i. | Accumulation of uric acid in joints |
| b. | Gout | ii. | Mass of crystallized salts within the kidney |
| c. | Renal calculi | iii. | Inflammation in glomeruli |
| d. | Glomerulonephritis | iv. | Presence of glucose in urine |
Options:
| a | b | c | d | |
| 1. | iii | ii | iv | i |
| 2. | i | ii | iii | iv |
| 3. | ii | iii | i | iv |
| 4. | iv | i | ii | iii |
Match the items given in Column I with those Column II and select the correct option given below:
| Column I (Function) | Column II (Part of the Excretory system) | ||
| (a) | Ultrafiltration | (i) | Henle's loop |
| (b) | Concentration of urine | (ii) | Ureter |
| (c) | Transport of urine | (iii) | Urinary bladder |
| (d) | Storage of urine | (iv) | Malpighian corpuscle |
| (v) | Proximal convoluted tubule | ||
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (v) | (ii) | (iii) |
| 2. | (iv) | (i) | (ii) | (iii) |
| 3. | (v) | (iv) | (i) | (ii) |
| 4. | (v) | (iv) | (i) | (iii) |
The part of nephron involved in active reabsorption of sodium is:
1. distal convoluted tubule
2. proximal convoluted tubule
3. Bowman's capsule
4. descending limb of Henle's loop
Removal of the proximal convoluted tubule from the nephron will result in:
2. more concentrated urine
3. no change in the quality and quantity of urine
4. no urine formation
Which of the following does not favour the formation of large quantities of dilute urine?
2. Caffeine
3. Renin
4. Atrial-natriuretic factor
Which of the following causes an increase in sodium reabsorption in distal convoluted tubule?
1. Increase in aldosterone levels
2. Increase in antidiuretic hormone levels
3. Decrease in aldosterone levels
4. Decrease in antidiuretic hormone levels
Figure shows a human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristics and/or functions.
| 1. | B-pelvis - broad funnel-shaped space inner to the hilum, directly connected to loops of Henle. |
| 2. | C- Medulla- inner zone of kidney and contains complex nephrons. |
| 3. | D- Cortex- outer part of the kidney and does not contain any part of nephrons. |
| 4. | A- Adrenal gland- located at the anterior part of the kidney; secretes catecholamines which stimulate glycogen breakdown. |
The maximum amount of electrolytes and water (70-80%) from the glomerular filtrate is reabsorbed in which part of the nephron?
1. Ascending limb of the loop of Henle
2. Distal convoluted tubule
3. Proximal convoluted tubule
4. Descending limb of the loop of Henle
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