PHOTOSYNTHESIS
PHOTOSYNTHETIC PIGMENTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Guard cells
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Wall cells
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Chloroplasts
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Thylakoids
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Detailed explanation-1: -(A) Guard cell : This is the correct answer. Cells enclosing the stomatal aperture are bean shaped and are known as guard cells.
Detailed explanation-2: -Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata. Light is the main trigger for the opening or closing. Each guard cell has a relatively thick cuticle on the pore-side and a thin one opposite it.
Detailed explanation-3: -Stomata are the bean-shaped guard cell that is responsible for the gas exchange in plants.
Detailed explanation-4: -The guard cells are generally crescent-shaped with blunt ends (kidney-shaped) in surface view (Fig. 22.3D) and often have ledges of wall material on the upper and lower sides.
Detailed explanation-5: -What are the Guard Cells? Two bean-shaped cells surrounding a stoma are called Guard Cells. They play a crucial role during the process of photosynthesis.