Q. No.What would happen if a frog's skin became completely dry?
| 1. | Only mobility would be affected |
| 2. | Only reproduction would be affected |
| 3. | Respiration would be severely compromised |
| 4. | Only feeding would be affected |
Subtopic: Frogs: Anatomy (Respiratory System) |
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In frogs, cutaneous respiration refers to the process of:
| 1. | Gas exchange through moist skin |
| 2. | Breathing through lungs |
| 3. | Respiration through the lining of the buccal cavity |
| 4. | Oxygen absorption through gills |
Subtopic: Frogs: Anatomy (Respiratory System) |
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In frogs:
1. Respiration by lungs is called pulmonary respiration
2. The lungs are a pair of elongated, pink coloured sacs present below the thorax
3. During aestivation and hibernation gaseous exchange takes place through skin
4. Both (1) and (3) are correct
1. Respiration by lungs is called pulmonary respiration
2. The lungs are a pair of elongated, pink coloured sacs present below the thorax
3. During aestivation and hibernation gaseous exchange takes place through skin
4. Both (1) and (3) are correct
Subtopic: Frogs: Anatomy (Respiratory System) |
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During winter, frogs hibernate by burrowing into the soil. They stop feeding and rely on stored fat bodies. Which structure(s) allow the frog to survive without lungs during hibernation?
| 1. | Nostrils and buccal cavity |
| 2. | Diaphragm and thoracic cavity |
| 3. | Alveoli and bronchial sacs |
| 4. | Moist skin and blood vessels in dermis |
Subtopic: Frogs: Anatomy (Respiratory System) |
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Which of the following is false about the respiration of frog?
1. Frogs respire on land and in water by the same method
2. In water, skin acts as aquatic respiratory organ (Cutaneous respiration)
3. Dissolved oxygen in water is exchanged through the skin by diffusion
4. On land, the buccal cavity, skin and lungs act as respiratory organs
1. Frogs respire on land and in water by the same method
2. In water, skin acts as aquatic respiratory organ (Cutaneous respiration)
3. Dissolved oxygen in water is exchanged through the skin by diffusion
4. On land, the buccal cavity, skin and lungs act as respiratory organs
Subtopic: Frogs: Anatomy (Respiratory System) |
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During aestivation and hibernation, gaseous exchange in frogs primarily takes place through:
1. Lungs
2. Buccal cavity
3. Gills
4. Skin
1. Lungs
2. Buccal cavity
3. Gills
4. Skin
Subtopic: Frogs: Anatomy (Respiratory System) |
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One of the main function of frog's skin is-
1. Diffusion of respiratory gases
2. Absorption of ultraviolet rays to produce vitamin D
3. Storage of excess food in the form of subcutaneous fat
4. Excretion of nitrogenous waste in the form of uric acid
1. Diffusion of respiratory gases
2. Absorption of ultraviolet rays to produce vitamin D
3. Storage of excess food in the form of subcutaneous fat
4. Excretion of nitrogenous waste in the form of uric acid
Subtopic: Frogs: Anatomy (Respiratory System) |
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Which one is correct about the respiration of frog?
| I. | In frog, cutaneous and pulmonary respiration are found |
| II. | A pair of elongated pink hollow lungs are found in thorax |
| III. | Atmospheric O2 → Nostril → Buccal cavity → Lungs |
| IV. | During aestivation and hibernation, gaseous exchange take place through skin. |
| 1. | All | 2. | I, II, III |
| 3. | III | 4. | None |
Subtopic: Frogs: Anatomy (Respiratory System) |
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During buccal respiration in frogs:
| 1. | The bucco-pharyngeal cavity is filled with air |
| 2. | Gaseous exchange occurs through the lining of buccal cavity |
| 3. | Both (1) and (2) |
| 4. | Pulmonary respiration stops |
Subtopic: Frogs: Anatomy (Respiratory System) |
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In frog, oxygen dissolved in water can be taken by
1. External nares
2. Spiracles
3. Buccal cavity
4. Skin
1. External nares
2. Spiracles
3. Buccal cavity
4. Skin
Subtopic: Frogs: Anatomy (Respiratory System) |
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