Question

Endocytosis is swallowing of food and other substances from external medium by the plasma membrane. So endocytosis takes place in:

1.plants only
2.animals only
3.both plants and animals
4.none of these

Answer 1

Answer:

animal only

Explanation:

Endocytosis is found only in the animal cells because animal cells lack a cell wall outside the plasma membrane . It is not associated with plant cells . They get their nutrients mostly by osmosis and plasmodesmata . Endocytosis may be a process , where cells absorb material such molecules like proteins from the surface by engulfing it with their semi - permeable cell membrane .

Since (plant cells have a cell wall covering around their cell membrane , endocytosis is not possible)

It is employed by animal cells because most substances important to them are large polar molecules , and thus , cannot undergo the cell wall . For endocytosis to occur , substances must be enclosed within a vesicle formed from the cell or plasma membrane .