BOTANY
PLANT ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Identify the correct statementa) Stomata are present on both epidermal layers in isobilateral leavesb) Guard cells are dumb-bell shaped in grass leavesc) Photosynthesis do not occur in guard cellsd) Stomata opens when guard cells are flaccid
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a, c
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c, d
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a, b
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b, d
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Explanation:
Detailed explanation-1: -So, the correct option is ‘Guard cells invariably possess chloroplasts and mitochondria.
Detailed explanation-2: -Therefore, this is the correct answer. Option C: Grasses are monocot. Hence, it has dumb-bell shaped guard cells. Therefore, this is an incorrect answer.
Detailed explanation-3: -23.2. Guard cells are surrounded by stomatal pores and are located in leaf epidermis. Guard cells control influx and efflux of CO2 and water from leaves, respectively.
Detailed explanation-4: -Stomata can be distributed in the following ways on the two sides of a leaf: An amphistomatous leaf has stomata on both surfaces. Most plants have such a distribution. A hypostomatous leaf has stomata only on the lower surface.
There is 1 question to complete.