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11 Cards in this Set
- Front
- Back
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Cell Transport
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The movement of substances across the cell membrane
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Active Transport
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-Requires ATP
-Goes against concentration gradient -Examples: ion pump/bulk transport |
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Concentration Gradient
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Areas of high or low amounts of a substance
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Ion pump
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-the way substances move in/out of cell
-"revolving door" |
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Hypertonic Situation
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Hyper- too much
water moves out of cell |
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Passive Transport
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-Requires no energy(ATP)
-Goes with the concentration gradient -examples: diffusion/osmosis |
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Isotonic Situation
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-Water moves in and out of the cell equally
-Resultsin no change -Also called "Dynamic Equilibrium" |
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Hypotonic Situation
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Hypo- too little
water moves into the cell |
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Simple Diffusion
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Movement of molecules from a high concentration to a low concentration or with the concentration gradient.
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Bulk Transport
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Getting large molecules through the cell membrane
Solid: protein and starch Liquid: oil |
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Osmosis
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A type of diffusion where water moves from a high concentration to a low concentration across a cell
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