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Cell Transport (Passive transport (requires no energy) (facilitated…
Cell Transport
Passive transport (requires no energy)
facilitated diffusion
the movement of molecules, and macromolucules through the membrane via transport proteins
osmosis
the movement of water into the cell by simple diffusion
diffusion
movement of a substance across the plasma membrane from an area of higher concentration to one of lower concentration until the cell reaches equilibrium
Active Transport (requires energy)
transport pumps
the movement of macromolules throught the membrne with energy created by ATP to move it across the gradient
transport vesicles
membranes within membranes, transport vessels
exocytosis
the movement of molocules from intercellular to extracellular by fusing with a vesicle that requires energy
endocytosis
substances moving into a cell a via a vesicle. two forms:
phagocytosis
cell eating
pinocytosis
cell drinking