FORESTRY
PLANT AND WOOD ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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xylem
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phloem
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vascular bundle
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guard cells
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Detailed explanation-1: -Explanation: Each of a pair of curved cells that surround a stoma, becoming larger or smaller according to the pressure within the cells is called guard cell.
Detailed explanation-2: -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-3: -Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata.
Detailed explanation-4: -Stomata are surrounded by two specialized cells called guard cells (Figure 17.1.
Detailed explanation-5: -Each stoma has two bean-shaped cells called guard cells.