HORTICULTURE SCIENCE
PLANT BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why are epidermal cells transparent?
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to allow light to pass through to inner cells
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to better diffuse carbon dioxide
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to discourage pests from devouring the leaves
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to reduce water loss by reflecting light
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Explanation:
Detailed explanation-1: -Epidermis – transparent, physical defence layer that does not contain chloroplasts. It allows light into the leaf.
Detailed explanation-2: -Both the upper epidermis and waxy cuticle are transparent and colorless to allow the sunlight through to the palisade cells beneath, which are the main photosynthesizing layer.
Detailed explanation-3: -The epidermis and the underlying water storage tissue in these window-leaved plants are transparent to allow light penetration to the internal chlorenchyma layers (Krulik, 1980). This anatomical adaptation presumably developed to allow photosynthesis underground so as to reduce water losses and heat load of the leaves.
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