HORTICULTURE SCIENCE
ULTRA STRUCTURE OF PLANT CELLS AND ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Parenchyma
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Sclerenchyma
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Collenchyma
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all of these
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Detailed explanation-1: -So, the correct answer is ‘Sclereids. ‘
Detailed explanation-2: -Assertion :Sclereids are found in fruit walls of nuts, the pulp of fruits like guava, pear, and sapota, and seed coats of legumes. Reason: Sclereids are spherical, oval or cylindrical, highly thickened dead cells with narrow lumen.
Detailed explanation-3: -Answer: lignin are sclerenchyma cells that are found in the seed coats and pulp of fruits.
Detailed explanation-4: -Final answer: The hard covering of seeds and nuts is due to sclerenchyma.
Detailed explanation-5: -Sclereids are a reduced form of sclerenchyma cells with highly thickened, lignified cellular walls that form small bundles of durable layers of tissue in most plants. The presence of numerous sclereids form the cores of apples and produce the gritty texture of guavas.