why is endocytosis found in animals only?
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Endocytosis is a process whereby cells absorb material from the outside by engulfing it with their cell membrane.
It is used by animal cells because most substances important to them are large polar molecules, and thus cannot pass through the plasma membrane.
It is used by animal cells because most substances important to them are large polar molecules, and thus cannot pass through the plasma membrane.
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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.
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