Describe endocytosis.

Explanation

Cell surface membrane are able to transport individual molecules and ions. There are processes in which a cell can transport a large quantity of solids and liquids into cell endocytosis or out of cell exocytosis.
Endocytosis: During endocytosis the cell wraps the cell surface membrrane around the material and brings it into cytoplasm inside a vesicle. there are two types of endocytosis:
1. Phagocytosis- Particle is ingulfed by membrane, which folds around it and forms a vesicle. the enzymes digest the material and products are absorbed by ctyoplasm.
2. Pinocytosis-Fluid droplets are engulfed by membrane, which forms vesicles around them.
Exocytosis: Vesicles fusse with plasma membrane and eject contents. this passage of material out the cell is known as exocytosis. this material may be a secretion in the case of digestive enzymes, hormones or mucus.