Q. No.Which of the following statements is correct?
1. The descending limb of loop of Henle is impermeable to water.
2. The ascending limb of loop of Henle is permeable to water.
3. The descending limb of loop of Henle is permeable to electrolytes.
4. The ascending limb of loop of Henle is impermeable to water.
1. The descending limb of loop of Henle is impermeable to water.
2. The ascending limb of loop of Henle is permeable to water.
3. The descending limb of loop of Henle is permeable to electrolytes.
4. The ascending limb of loop of Henle is impermeable to water.
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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 loop of Henle
2. Distal convoluted tubule
3. Proximal convoluted tubule
4. Descending limb of loop of Henle
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The principal nitrogenous excretory compound in humans is synthesised
1. in kidneys but eliminated mostly through liver
2. in kidneys as well as eliminated by kidneys
3. in liver and also eliminated by the same through bile
4. in the liver, but eliminated mostly through kidneys
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Which of the following would help in prevention of diuresis?
1. Reabsorption of Na+ and water from renal tubules to aldosterone
2. Atrial natriuretic factor causing vasoconstriction
3. Decrease in secretion of renin by JG cells
4. More water reabsorption due to under-secretion of ADH
Presence of which of the following conditions in urine are indicative of Diabetes Mellitus:
1. Uremia and Renal Calculi
2. Ketonuria and Glycosuria
3. Renal Calculi and Hyperglycaemia
4. Uremia and Ketonuria
The Bowman's capsule and glomerulus constitute the:
| 1. Malpighian tubule | 2. Renal corpuscle |
| 3. Nephron | 4. Collecting system |
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The presence of which of the following in urine is considered as ‘normal’?
| 1. Sodium ions | 2. Protein |
| 3. Glucose | 4. RBC |
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When the kidneys are eliminating a concentrated urine, NaCl is returned to the medullary interstitium by:
1. Thick segment of ascending limb of loop of Henle
2. Thin segment of ascending limb of loop of Henle
3. Ascending limb of the vasa recta
4. Descending limb of the vasa recta
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Identify the incorrectly matched pair:
|
1. |
Ureotelism |
Marine fishes |
|
2. |
Ammonotelism |
Many bony fishes |
|
3. |
Protonephridia |
Amphioxus |
|
4. |
Prawn |
Malpighian tubules |
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Match the parts of the nephron in Column I with function/feature in Column II and select the answer from the codes given:
| COLUMN I | COLUMN II | ||
| A. | PCT | a. | Maximum reabsorption of water and electrolytes |
| B. | Loop of Henle - descending limb | b. | Permeable to water but almost impermeable to electrolytes |
| C. | Loop of Henle - ascending limb | c. | Impermeable to water but permeable to electrolytes |
| D. | DCT | d. | Conditional reabsorption of Na+ and water |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | d | c |
| 3. | a | b | d | c |
| 4. | b | a | d | c |
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