Question

what is endocytosis? why it is found in animal only?

Answer 1

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ENDOCYTOSIS-

[1]. It is "taking in" the external material by the cell through plasma membrane.
[2]. Through this process animal cells engulf or injest food and other substances from the external surroundings through plasma membrane.

[]. It occurs only in animal cell because plasma membrane is directly contact with the external surroundings.[]
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Answer 2

Answer:

Endocytosis is swallowing up of food and other substances from external medium by the plasma membrane. This is possible only when plasma membrane is in direct contact with external medium. It occurs only in animal cells. In plant cells, a cell wall is present on the plasma membrane. Therefore, their plasma membrane cannot perform endocytosis.