Question

What are 3 types of endocytosis?

Answer 1

Endocytosis:

1. It is a process involving the bulk transport of materials into cells by membranes.
2. It occurs by infolding or extension of the cell surface membrane to form a vesicle or the vacuole.

The types of endocytosis are as follows–

1. Cellular eating or phagocytosis occurs when dissolved material enters cells. The plasma membrane engulfs the solid material, which forms a phagocytic vesicle
2. Cellular drinking or pinocytosis occurs when the plasma membrane starts to fold inwards, forming a channel that allows dissolved particles entry into cells. The liquid is filled with a pinocytic vesicle as soon as the channel closes.
3. The receptor-mediated endocytosis occurs when the particular molecule in fluids wraps cells associated with specialized receptors in the plasma membrane. Like pinocytosis, the plasma membrane folds inwards and starts forming a vesicle.