Endocytosis vs. Exocytosis

Endocytosisnoun

(cytology) The process by which the plasma membrane of a cell folds inwards to ingest material.

Endocytosis

Endocytosis is a cellular process in which substances are brought into the cell. The material to be internalized is surrounded by an area of cell membrane, which then buds off inside the cell to form a vesicle containing the ingested material.

Exocytosisnoun

(biology) The secretion of substances through cellular membranes, either to excrete waste products or as a regulatory function.

Exocytosis

Exocytosis () is a form of active transport and bulk transport in which a cell transports molecules (e.g., neurotransmitters and proteins) out of the cell (exo- + cytosis). As an active transport mechanism, exocytosis requires the use of energy to transport material.