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Q. No.Unlike humans, frogs have a:
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: | Hepatic portal system |
| II: | Renal portal system |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Frogs: Anatomy (Digestive System) | Frogs: Anatomy (Excretory System) |
From NCERT
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Subtopic: Frogs: Anatomy (Excretory System) |
82%
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The excretory system of a frog consists of all of the following, except:
| 1. | a pair of kidneys | 2. | a pair of urethra |
| 3. | a single median cloaca | 4. | urinary bladder |
Subtopic: Frogs: Anatomy (Excretory System) |
78%
From NCERT
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The thin-walled urinary bladder in frog is present:
| 1. | ventral to the rectum which does not open in the cloaca. |
| 2. | ventral to the rectum which also opens in the cloaca. |
| 3. | dorsal to the rectum which does not open in the cloaca. |
| 4. | dorsal to the rectum which also opens in the cloaca. |
Subtopic: Frogs: Anatomy (Excretory System) |
85%
From NCERT
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The cloaca in a frog is a small, median chamber that is used to pass:
| 1. | only faecal matter to the exterior. |
| 2. | only faecal matter and urine but not sperms to the exterior. |
| 3. | faecal matter, urine and sperms to the exterior. |
| 4. | faecal matter and sperms but not urine to the exterior. |
Subtopic: Frogs: Anatomy (Excretory System) |
96%
From NCERT
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How many of the given statements regarding the anatomy of frogs are correct?
| A: | Kidneys are situated a little posteriorly in the body cavity on both sides of the vertebral column. |
| B: | Each kidney is composed of several structural and functional units called uriniferous tubules or nephrons. |
| C: | Two ureters emerge from the kidneys in male frogs, where the ureters act as urinogenital ducts that open into the cloaca. |
| D: | In females, the ureters and oviduct open separately in the cloaca. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Frogs: Anatomy (Excretory System) |
80%
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How many of the given statements regarding frog are correct?
1. 2
2. 3
3. 4
4. 5
| A: | The frog never drinks water but absorbs it through the skin. |
| B: | Frogs respire through skin when in water. |
| C: | The vascular system of frog is well-developed closed type. |
| D: | In male frogs, the ureters act as urogenital duct. |
| E: | The ear is an organ of hearing as well as balancing. |
2. 3
3. 4
4. 5
Subtopic: Frogs | Frogs: Morphology | Frogs: Anatomy (Circulatory System) | Frogs: Anatomy (Respiratory System) | Frogs: Anatomy (Nervous System) | Frogs: Anatomy (Excretory System) | Frogs: Anatomy (Male Reproductive System) |
61%
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How do frogs primarily excrete nitrogenous waste?
| 1. | As ammonia through the skin when submerged in water. |
| 2. | As urea through the kidneys. |
| 3. | As uric acid via the cloaca. |
| 4. | As urea through the skin. |
Subtopic: Frogs: Anatomy (Excretory System) |
67%
From NCERT
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Identify the incorrect statement about frog:
| 1. | During aestivation and hibernation, gaseous exchange takes place through skin. |
| 2. | Forebrain includes olfactory lobes, paired cerebral hemispheres and unpaired diencephalon. |
| 3. | The urinary bladder is present dorsal to the rectum which also opens in the cloaca. |
| 4. | A mature female can lay 2500 to 3000 ova at a time. |
Subtopic: Frogs: Anatomy (Excretory System) |
73%
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