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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it forms glandular tissue
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it has a good blood supply
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one side rests on a basement membrane
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it forms continuous cellular sheets
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Detailed explanation-1: -Epithelial tissue has a nerve supply, but no blood supply and must be nourished by substances diffusing from the blood vessels in the underlying tissue.
Detailed explanation-2: -Answer and Explanation: The statement that is not true for the epithelial tissues is c. Stratified squamous epithelium of the outer layer of the skin has living cells on the surface.
Detailed explanation-3: -Since epithelial tissues do not have a blood supply, they obtain nutrients and remove wastes by a mechanism known as diffusion.
Detailed explanation-4: -Epithelial tissue does not contain blood vessels to prevent bleeding because this tissue is constantly exposed to mechanical and chemical wear and tear. Although this tissue is avascular, it is well supplied with nutrients through diffusion mechanism.