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15 Cards in this Set
- Front
- Back
A(n) ____ allows only certain molecules to pass through it
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semipermeable
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the movement of molecules from an area of high concentration to an area of low concentration is ____
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diffusion
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a(n) ____ is the difference between the concentration of a particular molecule in one area and the concentration in an adjacent area
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concentration gradient
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the diffusion of water across a semipermeable membrane is called ____
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osmosis
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in a(n) ____, the concentration of solutes outside the cell is higher than the concentration of solutes inside the cell
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hypertonic solution
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the concentration of solutes in a(n) ____ is lower outside the cell than the concentration of solutes inside the cell
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hypotonic solution
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the concentratin of solutes in a(n) ____ equals the concentration of solutes inside the cell
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isotonic
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the use of carrier proteins for diffusion is called ____
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facciliated diffusion
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the process of ____ is defined as the use of energy to carry molecules across the membrane
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active transport
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in the process of ____, large molecules, food, and other substances are packaged and moved across the membrane
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bulk transport
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how do facilitated diffusion and active transport differ?
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faciliated diffusion doesn't need energy while active transport requires energy
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how do endocytosis and exocytosis differ?
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endocytosis takes things into the cell while exocytosis moves things out of the cell
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What is the difference between pinocytosis and phagocytosis?
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pinocytosis lets liquid into the cell while phagocytosis lets particles into the cell
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what would happen to a cell in a hypertonic solution?
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it would shrink
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what would happene to a cell in a hypotonic solution?
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it would burst
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