What is endocytosis? Why is endocytosis found in animals only.

1.	What is endocytosis? Why is endocytosis found in animals only.
Answer» Endocytosis refers to imagination of a small region of plasma membrane, forming an intercellular membrane-bound vesicle. It has been observed in many kinds of animal cells, where the plasma membrane is in direct contact with external medium. Endocytosis is not shown by plant cells because a rigid cell wall is present over the plasma membrane in them. Thus, this process is found in animals only.

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