6710862
Description
Flashcards by Julie Thompson, updated more than 1 year ago
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Created by Julie Thompson
almost 8 years ago
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| Question | Answer |
| Endocytosis is a process that occurs when the cell membrane pinches inward to pull extracellular material (solid or liquid) into a vesicle inside the cell. Pinocytosis is shown here since the material is a liquid with dissolved solutes. | |
| Phagocytosis is a type of endocytosis that occurs when the cell membrane pinches inward to pull in extracellular material that is a solid. The solid material becomes enclosed in a vesicle. | |
| Receptor mediated endocytosis occurs when cell membrane receptors bind to a ligand (molecule) and migrate to a protein coated pit which will pinch inward to pull the membrane with receptors and ligands into a coated vesicle. | |
| Exocytosis is a transport process where vesicles containing molecules for secretion fuse with the plasma membrane to release the molecules. | |
| bacteria cell debris intact cells | ingested by phagocytosis |
| liquid and dissolved solutes | ingested by pinocytosis |
| Coated pits in the surface of the cell membrane can contain a protein called clathrin. These coated pits play a role in receptor mediated endocytosis. |
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