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Q. No. During urine formation, which process is non-selective ?
1. Tubular reabsorption
2. Tubular secretion
3. Glomerulus filtration
4. Ultrafiltration and tubular secretion
Subtopic: Formation of Urine |
62%
From NCERT
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What would be true about the role of collecting duct in the concentration of urine by the kidneys?
| I: | Allows passage of small amounts of urea into the medullary interstitium |
| II: | Large amounts of water could be reabsorbed from this part to produce a concentrated urine. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Nephron Part 1 | Nephron Part 2 | Concentration of Urine |
82%
From NCERT
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Approximately what amount of carbon dioxide is removed by lungs per hour in a healthy resting individual?
| 1. | 200 ml | 2. | 12 L |
| 3. | 122 L | 4. | 288 L |
Subtopic: Role of other Organs in Excretion |
53%
From NCERT
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Identify the incorrect statement:
| 1. | Glomerulus is a tuft of capillaries formed by afferent arteriole. |
| 2. | Blood from the glomerulus is carried away by an efferent arteriole. |
| 3. | Vasa recta is well developed in cortical nephrons. |
| 4. | The DCTs of many nephrons open into a straight tube called collecting duct. |
Subtopic: Nephron Part 1 | Nephron Part 2 |
90%
From NCERT
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Nephrons closest to the renal medulla are called:
1. Cortical
2. Medullary
3. Juxta-medullary
4. Proto-nephridia
1. Cortical
2. Medullary
3. Juxta-medullary
4. Proto-nephridia
Subtopic: Human Kidney: Location & Cut Section | Nephron Part 1 | Nephron Part 2 |
77%
From NCERT
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ADH:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | is released when an excessive loss of fluid from the body activates osmoreceptors in the body. |
| II: | prevents dieresis by facilitating water reabsorption from the initial and proximal parts of the tubules. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Autoregulation of GFR |
55%
From NCERT
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Henle’s loops are found in those animals which excrete hypertonic urine. One of the following does not have Henle’s loop
(1) Birds
(2) Mammals
(3) Frogs
(4) Reptiles
(1) Birds
(2) Mammals
(3) Frogs
(4) Reptiles
Subtopic: Concentration of Urine |
58%
From NCERT
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Adrenaline, Angiotensin II and ADH can all:
| 1. | cross target cell membrane and influence gene activity |
| 2. | cause vasoconstriction |
| 3. | be secreted by postganglionic sympathetic neurons |
| 4. | increase blood glucose levels |
Subtopic: Autoregulation of GFR |
81%
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Consider the following statements:
| I: | Glomerulus is a tuft of capillaries formed by the efferent arteriole |
| II: | Afferent arteriole forms the peritubular capillary network |
| III: | Vasa recta is absent or highly reduced in juxtamedullary nephrons |
| 1. | Only III is correct |
| 2. | I is correct but II and III are incorrect |
| 3. | I, II and III are incorrect |
| 4. | I and II are correct |
Subtopic: Human Kidney: Location & Cut Section | Nephron Part 1 | Nephron Part 2 |
65%
From NCERT
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Identify the part of the nephron that:
| I: | is lined by cuboidal brush bordered epithelium |
| II: | reabsorbs 70-80 percent of electrolytes and water |
| 1. | Proximal convoluted tubule |
| 2. | Loop of Henle |
| 3. | Distal convoluted tubule |
| 4. | Collecting duct |
Subtopic: Nephron Part 1 | Nephron Part 2 |
91%
From NCERT
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