Explain how exocytosis and endocytosis occur across the plasma membrane.

Explain how exocytosis and endocytosis occur across the plasma membrane. 

Exocytosis and endocytosis are process of transport of materials out of and into the cell respectively. The material involved are those too large to be absorbed by diffusion or active transport.

During endocytosis, the cell membrane invaginates to form a cup shaped depression in which material is enclosed. The depression is then pinched off to form a vacuole in the cytoplasm of a cell. If the material taken in is a solid, this is called phagocytosis. And if the material taken is a liquid, the process is called pinocytosis.

During exocytosis, a vacuole containing material to be excreted fuses with cell membrane from within. The membranes unite and open up the vacuole releasing the contents to the outside.

Please subscribe to promote this website. Subscription is free.

Share this website with a friend

Thank you so much