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 |
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Level 1: 80%+
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In a healthy adult human being, on an average:
| 1. | about 25 – 30 mg of urea is excreted out per day |
| 2. | 125 ml per minute urine is produced |
| 3. | about 200 L carbon dioxide is removed by the lungs per minute |
| 4. | 1100-1200 ml of blood is filtered by the kidneys per minute |
Subtopic: Formation of Urine |
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Which part of the nephron plays a significant role in the maintenance of high osmolarity of medullary interstitial fluid?
1. Proximal convoluted tubule
2. Ascending limb of Loop of Henle
3. Descending limb of Loop of Henle
4. Distal convoluted tubule
1. Proximal convoluted tubule
2. Ascending limb of Loop of Henle
3. Descending limb of Loop of Henle
4. Distal convoluted tubule
Subtopic: Nephron Part 1 | Nephron Part 2 |
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Nitrogenous waste is excreted in the form of pellet or paste by:
| 1. | Pavo | 2. | Ornithorhynchus |
| 3. | Salamandra | 4. | Hippocampus |
Subtopic: Nitrogenous Excretory Products |
77%
Level 2: 60%+
NEET - 2022
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Which one of the following hormones reduces blood pressure?
1. Antidiuretic hormone
2. Atrial Natriuretic factor
3. Aldosterone
4. Angiotensin-II
Subtopic: Autoregulation of GFR |
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NEET - 2022
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Terrestrial adaptations necessitated the production of :
| 1. | Highly toxic nitrogenous wastes like urea and uric acid |
| 2. | Lesser toxic nitrogenous wastes like urea and uric acid |
| 3. | Lesser toxic nitrogenous wastes like ammonia and urea |
| 4. | Highly toxic nitrogenous wastes like ammonia and urea |
Subtopic: Nitrogenous Excretory Products |
87%
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NEET - 2022
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Proximal tubular function includes all of the following except?
1. Reabsorption of sodium and water
2. Reabsorption of \(\mathrm{HCO}_{3}^{-}\)
3. Reabsorption of urea.
4. Reabsorption of ammonia
1. Reabsorption of sodium and water
2. Reabsorption of \(\mathrm{HCO}_{3}^{-}\)
3. Reabsorption of urea.
4. Reabsorption of ammonia
Subtopic: Concentration of Urine: I | Concentration of Urine: II |
Level 3: 35%-60%
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I [Organism] |
Column II [Osmoregulatory and excretory structure] |
||
| A | Flatworms, rotifers, Amphioxus | P | Protonephridia |
| B | Earthworm | Q | Nephridia |
| C | Insects | R | Malpighian tubule |
| D | Prawn | S | Green gland or antennal gland |
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | Q | R | S | P |
| 3. | R | S | P | Q |
| 4. | S | P | Q | R |
Subtopic: Nitrogenous Excretory Products |
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Identify the correct statements:
| I: | Each kidney of an adult human measures 10-12 cm in length, 5-7 cm in width and 2-3 cm in thickness. |
| II: | The DCTs of many nephrons open into a straight tube called collecting duct. |
| III: | Each nephron has two parts – the glomerulus and the renal tubule. |
| IV: | The renal tubule begins with the proximal convoluted tubule. |
| 1. | Only I and II | 2. | Only I, II and III |
| 3. | Only II and III | 4. | I, II, III and IV |
Subtopic: Human Kidney: Functions | Human Kidney: Location & Cut Section |
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Identify the incorrect statement:
| 1. | The descending limb of loop of Henle is permeable to water but almost impermeable to electrolytes. |
| 2. | The ascending limb of loop of Henle is impermeable to water but allows transport of electrolytes actively or passively. |
| 3. | DCT is capable of reabsorption of bicarbonate ions and selective secretion of hydrogen and potassium ions and ammonia to maintain the pH and electrolyte balance in the body. |
| 4. | PCT does not play any role in reabsorption of bicarbonate ions and selective secretion of hydrogen and ammonia to maintain the pH and electrolyte balance in the body. |
Subtopic: Nephron Part 1 | Nephron Part 2 |
88%
Level 1: 80%+
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