- 1(current)
Q. No.Frogs respire on land and in water by two different methods:
| Statement I: | In water, skin acts as aquatic respiratory organ (cutaneous respiration). |
| Statement II: | On land, the buccal cavity, skin and lungs act as the respiratory organs. |
| 1. | Statement I is correct, Statement II is correct |
| 2. | Statement I is incorrect, Statement II is correct |
| 3. | Statement I is correct, Statement II is incorrect |
| 4. | Statement I is incorrect, Statement II is incorrect |
Subtopic: Frogs: Anatomy (Respiratory System) |
89%
From NCERT
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During aestivation and hibernation, gaseous exchange in frogs takes place:
1. across alveoli in the lungs.
2. through the moist buccal mucosa.
3. in gills.
4. through skin.
1. across alveoli in the lungs.
2. through the moist buccal mucosa.
3. in gills.
4. through skin.
Subtopic: Frogs: Anatomy (Respiratory System) |
92%
From NCERT
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Consider the given two statements regarding frogs:
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | In water, skin acts as aquatic respiratory organ (cutaneous respiration). |
| Statement II: | On land, the buccal cavity, skin and lungs act as the respiratory organs. |
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Frogs: Anatomy (Respiratory System) |
90%
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
| Assertion (A): | The skin of a frog is always kept moist and has a mucus covering. |
| Reason (R): | Frogs respire through the skin as well. |
In the light of the above statements choose the correct answer from the options given below:
| 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. | Both (A) and (R) are False. |
Subtopic: Frogs: Morphology | Frogs: Anatomy (Respiratory System) |
68%
From NCERT
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Identify the correct statements regarding the frog:
| I: | In water, the skin acts as an aquatic respiratory organ (cutaneous respiration). |
| II: | On land, the buccal cavity, skin and lungs act as the respiratory organs. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Frogs: Anatomy (Respiratory System) |
89%
From NCERT
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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%
From NCERT
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Which of the following statements about respiration in frogs is true?
| 1. | Frogs respire only through their skin and not through lungs. |
| 2. | Adult frogs use their lungs for respiration, but can also respire through their moist skin. |
| 3. | Frogs cannot respire through their skin; they rely solely on their lungs. |
| 4. | The respiration in frogs is identical to that in humans, relying entirely on pulmonary ventilation. |
Subtopic: Frogs: Anatomy (Respiratory System) |
96%
From NCERT
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