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biological membrane - Coggle Diagram
biological membrane
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bulk transport
endocytosis
- substance engulfed as plasma membrane folds
- membrane "pinches" off forming a vesicle
- ATP required to form vesicle + pull into cell - cytoskeleton
exocytosis
- vesicle pulled across the cytoskeleton to plasma membrane
- fuses with plasma membrane
- substance released in bulk out of the cell
osmosis
net movement of water molecules that are free to move from an area of high water potential to an area of low water potential through a partially permeable membrane
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