AP BIOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Exocytosis is a form of active transport through which large molecules are moved from the interior to the exterior of the cell. Vesicles are packaged within the cell and transported to the cell membrane, where their phospholipid bilayers fuse. This allows the contents to be released outside the cell.

Detailed explanation-3: -Endocytosis is the process by which cells take in substances from outside of the cell by engulfing them in a vesicle.

Detailed explanation-4: -Cells use exocytosis to secrete molecules too large to pass through the cell membrane by any other mechanism.

Detailed explanation-5: -A vesicle forms when the membrane bulges out and pinches off. It travels to its destination then merges with another membrane to release its cargo. In this way proteins and other large molecules are transported without ever having to cross a membrane.