AP BIOLOGY

Detailed explanation-1: -Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell, as s hown in Figure below. Exocytosis occurs when a cell produces substances for export, such as a protein, or when the cell is getting rid of a waste product or a toxin.

Detailed explanation-2: -Exocytosis is a form of bulk transport during which large numbers of molecules are transported out of the cell. In exocytosis, a vesicle (a small, membrane-bound compartment) containing the molecules to be released fuses with the cell membrane, and the contents of the vesicle are expelled.

Detailed explanation-3: -Exocytosis is the process by which cells move materials from within the cell into the extracellular fluid. Exocytosis occurs when a vesicle fuses with the plasma membrane, allowing its contents to be released outside the cell.

Detailed explanation-4: -During exocytosis cells expel a variety of materials including waste products, toxins and large molecules such as hormones, proteins and neurotransmitters into the extracellular environment.

Detailed explanation-5: -Phagocytosis is a special form of endocytosis in which large particles such as microorganisms and dead cells are ingested via large endocytic vesicles called phagosomes.