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8 Cards in this Set
- Front
- Back
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diffusion
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when molecules move to lower concentration
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simple diffusion
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diffusion across a membrane to a lower concentration gradient
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facilitated diffusion
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involves carrier/transport proteins and moves molecules in the direction of the gradient
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active transport
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involves transport proteins and energy
ATP, proton motive force, etc can work with or against gradient |
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osmosis
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movement of water molecules across a membrane in direction of concentration gradient
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isotonic solution
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solvent and solute are equal inside and out of the cell
no concentration gradient |
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hypotonic solution
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solvent higher outside of the cell, solute lower outside of cell
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hypertonic solution
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solvent lower outside of cell, solute higher outside of cell
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