Question

Why is endocytosis found in animals only?

Answer 1

Endocytosis is the ingestion of material by the cells through the plasma membrane. It is more difficult to occur in plants than in animals because of the presence and absence of cell walls in plants and animals respectively. The plasma membrane of a plant cell is usually pressed against the rigid cell wall by turgor pressure, which hinders the plasma membrane from invaginating into the cytoplasm. Turgor pressure is a positive pressure that develops in a plant cell due to the entry of water into it.