SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Allow gases to enter and exit the leaf
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Conserve water by closing during times when too much water can transpire
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Open when it rains so water can be taken in
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A and B only
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A and C only
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Detailed explanation-1: -Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.
Detailed explanation-2: -The epidermis of leaves has tiny pores like features through which passage of gases and water takes place is, termed stomata.
Detailed explanation-3: -This evolutionary innovation is so central to plant identity that nearly all land plants use the same pores-called stomata-to take in carbon dioxide and release oxygen. Stomata are tiny, microscopic and critical for photosynthesis. Thousands of them dot on the surface of the plants.
Detailed explanation-4: -The main functions of stomata are: Gaseous exchange-Stomatal opening and closure help in the gaseous exchange between the plant and surrounding. It helps in transpiration and removal of excess water in the form of water vapour. Stomatal closure at night prevents water from escaping through pores.
Detailed explanation-5: -Its prime function is to exchange the gases by closing and opening the pores in the leaves. It assists in eradicating excess water from the leaves. It removes oxygen and takes in carbon dioxide at the time of photosynthesis. It assists in monitoring the movement of water via transpiration.