TREE PHYSIOLOGY
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Terrestrial plants have stomata on the surface of their leaves. Stomata are surrounded by two guard cells. Which of the following best explains how the structure of the leaf is used in processes that occur in plants?
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Water enters the plant through the surface of the leaf for transpiration
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Gases for photosynthesis are exchanged through the surface of the leaf
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Energy for cellular reproduction is absorbed through the surface of the leaf
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Carbon dioxide enters the plant through the surface of the leaf for cellular reproduction
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Explanation:
Detailed explanation-1: -During photosynthesis, leaves take in atmospheric CO2 and release O2 through stomata, microscopic pore structures in the leaf epidermis (singular = stoma). A pair of guard cells surrounds each stoma, and these cells control the opening and closing of the stomatal pore between them.
Detailed explanation-2: -Stomata are more numerous on the lower side of the leaf to prevent transpiration. Transpiration is the loss of water through stomata, so, more stomata are found on the lower surface to prevent excessive loss of water.
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