OBJECTIVE LIFE SCIENCE
DIVERSITY AMONG LIFE FORMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a specialized plant cell that controls the opening and closing of the stomata, thus regulating transpiration
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stoma
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xylem
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vein
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guard cell
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Explanation:
Detailed explanation-1: -A pair of guard cells surrounds each stoma, and these cells control the opening and closing of the stomatal pore between them. Guard cells regulate this opening and closing in response to a wide variety of environmental signals, such as day/night rhythms, CO2 availability, and temperature.
Detailed explanation-2: -Leaf stomata are the primary sites of transpiration and consist of two guard cells that form a small pore on the surfaces of leaves. The guard cells control the opening and closing of the stomata in response to various environmental stimuli and can regulate the rate of transpiration to reduce water loss.
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