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Q. No.What is the mechanism for the filtration of blood within the nephron?
1. both active and passive secretion of ions, toxins, and NH3 into the tubule
2. high hydrostatic pressure of blood forcing water the small molecules out of the capillary.
3. the high osmolarity of the medulla that was created by active and passive transport of salt from the tubule and passive diffusion of urea from the collecting duct
4. a lower osmotic pressure in Bowman’s capsule compared to the osmotic pressure in the glomerulus.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Concentration of Urine: I |
52%
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In the given combination of compound, select which are either completely secreted or reabsorbed during urine formation?
1. NH3, H+, inulin
2. \(\mathrm{HCO}_{3}^{-}\), glucose, K+
3. Na+, penicillin, urea
4. amino acid, \(\mathrm{HCO}_{3}^{-}, \mathrm{Na}^{+}\).
1. NH3, H+, inulin
2. \(\mathrm{HCO}_{3}^{-}\), glucose, K+
3. Na+, penicillin, urea
4. amino acid, \(\mathrm{HCO}_{3}^{-}, \mathrm{Na}^{+}\).
Subtopic: Concentration of Urine: I |
53%
From NCERT
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A: The
Osmolarity of nephric filtrate is similar to osmolarity of blood plasma.
R: Nephric filtrate lack urea and proteins.
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
R: Nephric filtrate lack urea and proteins.
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Subtopic: Formation of Urine |
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Which of the following combinations is correct regarding to "transamination"?
A. Involves transfer of a \(\alpha\)-ketoglutaric acid to glutamic acid
B. Involves the transfer of amino group from one amino acid to the keto group of a keto acid
C. Involves transfer of glutamic acid to ketoglutaric acid
D. Involves transfer of glutamic acid to keto acid
E. Transfer of glutamic acid to keto acid
Choose the correct answer from the options given below:
1. A, B only
2. D only
3. B only
4. A only
A. Involves transfer of a \(\alpha\)-ketoglutaric acid to glutamic acid
B. Involves the transfer of amino group from one amino acid to the keto group of a keto acid
C. Involves transfer of glutamic acid to ketoglutaric acid
D. Involves transfer of glutamic acid to keto acid
E. Transfer of glutamic acid to keto acid
Choose the correct answer from the options given below:
1. A, B only
2. D only
3. B only
4. A only
Subtopic: Formation of Urine |
53%
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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 |
93%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
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 |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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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 |
87%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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Collecting duct does not:
I: allow reabsorption of large amount of water during concentration of urine.
II. allow passage of small amounts of urea into medullary interstitium to keep up the osmolarity.
III. play a role in the maintenance of pH and ionic balance of blood by the selective secretion of H+ and K+ ions.
| 1. Only I and II | 2. Only III |
| 3. Only II | 4. I, II and III are incorrect |
Subtopic: Nephron Part 1 | Nephron Part 2 | Concentration of Urine |
51%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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The osmolarity of interstitial fluid in renal cortex of vertebrates is about _____ mOsm per litre, which can be increased to about _______ mOsm per litre in the inner medulla during concentration of urine by the kidneys.
| 1. | 1200, 300 | 2. | 300, 1200 |
| 3. | 300, 600 | 4. | 600, 300 |
Subtopic: Concentration of Urine |
93%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
During hemodialysis:
I: Cellophane tube in a dialysing unit acts as artificial kidney.
II: Heparin is added to the blood before it is passed on to the dialysing unit.
III: The cleared blood is pumped back to the body through a vein after adding anti-heparin to it.
1. Only I is correct
2. Only I and II are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: CRF & Hemodialysis |
83%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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