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Biology: Chapter 5.2

Chapter 5.2 Vocabulary

TermDefinition
Active Transport the movement of materials from an area of lower concentration to an area of higher concentration; requires a cell to expend energy
Sodium-Potassium Pump a carrier protein; transports Na+ ions and K+ ions up their concentration gradients
Endocytosis the process by which cells ingest external fluid, macromolecules, and large particles, including other cells
Vesicle a membrane-bound organelle
Pinocytosis involves the transport of solutes or fluids
Phagocytosis the movement of large particles or whole cells
Phagocyte certain cells in animals use phagocytosis to ingest bacteria and viruses that invade the body
Exocytosis the process by which a substance is released form the cell through a vesicle that transports the substance to the cell surface and then fuses with the membrane to let the substance out of the cell
Created by: truongm19