STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
ANIMAL TISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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sclerenchyma cells are closely packed
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collenchyma cells have thickened corners
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xylem gives mechanical strength
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epidermis has a thick cuticle
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Detailed explanation-1: -The husk of a coconut is made of sclerenchymatous tissue. They are lignified and make it difficult to pull. Sclerenchyma gives rigidity and stiffness to the plant and also due to the presence of lignin on the walls of the cells we find it tough to pull the husk out.
Detailed explanation-2: -The Sclerenchymatous tissue, which is a type of permanent tissue makes up the husk of the coconut. These tissues cause the plant to become stiff and hard. The cells of this tissue are dead and their cell walls are thickened because of the presence of lignin.
Detailed explanation-3: -The husk of coconut is made up of Sclerenchyma tissues. It is a simple permanent tissue. Cells are long with tapering ends and have a thick cell wall made of lignin. These cells are generally dead and do not contain protoplasm.
Detailed explanation-4: -Answer: The coconut husk is composed of sclerenchyma tissue.
Detailed explanation-5: -Intercellular spaces are absent in sclerenchymatous tissues because they have a cementing substance (known as lignin) around their cell membrane which makes them stiff and hard.