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Q. No.Nitrogenous waste is excreted in the form of pellet or paste by:
1.
Pavo
2.
Ornithorhynchus
3.
Salamandra
4.
Hippocampus
Subtopic: Nitrogenous Excretory Products |
75%
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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 |
84%
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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 |
86%
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NEET - 2022
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Which of the following substance is/are maximally reabsorbed in PCT as well as maximally secreted in DCT?
(i) NH3
(ii) H+
(iii) K+
(iv) urea
(iv) \(\mathrm{HCO}_{3}^{-} \text {. }\)
1. (i), (ii), (iii)
2. (ii), (iii), (vi)
3. (ii), (iii), (iv)
4. (iii) only.
(i) NH3
(ii) H+
(iii) K+
(iv) urea
(iv) \(\mathrm{HCO}_{3}^{-} \text {. }\)
1. (i), (ii), (iii)
2. (ii), (iii), (vi)
3. (ii), (iii), (iv)
4. (iii) only.
Subtopic: Concentration of Urine: I | Concentration of Urine: II | Concentration of Urine |
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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 |
From NCERT
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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)
A: Beer and alcohol are diuretic substances
R: They inhibit the release of ADH from the posterior lobe of pituitary
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)
A: Beer and alcohol are diuretic substances
R: They inhibit the release of ADH from the posterior lobe of pituitary
- 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: Human Kidney: Functions | Autoregulation of GFR |
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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.
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
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%
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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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