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Q. No.Match the following excretory structures with their respective organisms:
Column I
Column II
A
Malpighian tubules
P
Earthworm
B
Green glands
Q
Insects
C
Flame cells
R
Planaria
S
Crustaceans
Codes:
A
B
C
1.
Q
S
R
2.
P
Q
R
3.
Q
R
S
4.
S
Q
P
Subtopic: Disorders of Excretory System |
93%
From NCERT
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Which of the following statements about the human excretory system are correct?
1. I, II, and III only
2. I, II, and IV only
3. I, III, and IV only
4. I, II, III, and IV
| I: | The kidneys filter excess water, salts, and waste products from the blood. |
| II: | The ureters transport urine from the kidneys to the urinary bladder. |
| III: | The urethra carries urine out of the body. |
| IV: | The liver plays the most important role in the production of urine. |
2. I, II, and IV only
3. I, III, and IV only
4. I, II, III, and IV
Subtopic: Human Kidney: Functions |
67%
From NCERT
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Which of the following returns NaCl back to the medullary interstitium when kidney is producing concentrated urine?
1. Thin segment of ascending limb of loop of Henle
2. Ascending limb of Vasa recta
3. Descending limb of Vasa recta
4. Collecting tubule
1. Thin segment of ascending limb of loop of Henle
2. Ascending limb of Vasa recta
3. Descending limb of Vasa recta
4. Collecting tubule
Subtopic: Concentration of Urine |
63%
From NCERT
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Consider the given two statements:
| Statement I: | Urea is used as an osmolyte in the human body. |
| Statement II: | Urea is produced in the human liver. |
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: Nitrogenous Excretory Products |
85%
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Consider the given two statements:
| Assertion (A): | The process of filtration at glomerulus is considered as a process of ultra filtration. |
| Reason (R): | Blood is filtered so finely through these membranes, that almost all the constituents of the plasma except the proteins pass onto the lumen of the Bowman’s capsule. |
| 1. | Both (A) and (R) are True, and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True, but (R) is not the correct explanation of (A). |
| 3. | (A) is True, but (R) is False. |
| 4. | (A) is False, but (R) is True. |
Subtopic: Formation of Urine: Ultrafiltration |
93%
From NCERT
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Regarding the descending limb of loop of Henle:
| I: | It is the most common site for tubular secretion during urine formation. |
| II: | It is impermeable to water but allows transport of electrolytes actively or passively. |
1. Only I is correct
2. Only II is correct
3. Both I and II is correct
4. Neither I nor II is correct
Subtopic: Function of the tubules |
74%
From NCERT
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Micturition should occur due to:
| 1. | the contraction of smooth muscles of the bladder and simultaneous relaxation of the urethral sphincter. |
| 2. | the relaxation of smooth muscles of the bladder and simultaneous relaxation of the urethral sphincter. |
| 3. | the contraction of smooth muscles of the bladder and simultaneous contraction of the urethral sphincter. |
| 4. | the relaxation of smooth muscles of the bladder and simultaneous contraction of the urethral sphincter. |
Subtopic: Micturition Reflex |
88%
From NCERT
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Approximately what amount of carbon dioxide is removed by our lungs per minute?
| 1. | 4 ml | 2. | 5 ml |
| 3. | 200 ml | 4. | 125 ml |
Subtopic: Role of other Organs in Excretion |
79%
From NCERT
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During the process of haemodialysis:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | The blood is drained from a convenient artery. |
| II: | Blood drained is pumped into a dialysing unit after adding an anticoagulant like heparin. |
| III: | The cleared blood is pumped back to the body through a vein after adding anti-heparin to it. |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: CRF & Hemodialysis |
90%
From NCERT
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Consider the following statements:
An adult human being, on average, excretes
A: 1 to 1.5 liters of urine per day.
B: 25 to 30 grams of urea per day.
1. Only A is correct.
2. Only B is correct.
3. Both A and B are correct.
4. Both A and B are incorrect.
An adult human being, on average, excretes
A: 1 to 1.5 liters of urine per day.
B: 25 to 30 grams of urea per day.
1. Only A is correct.
2. Only B is correct.
3. Both A and B are correct.
4. Both A and B are incorrect.
Subtopic: Human Kidney: Location & Cut Section |
89%
From NCERT
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