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7 Cards in this Set
- Front
- Back
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What is diffusion |
The spreading out of particles from an area of high concentration to an area of low concentration. |
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What states does diffusion take place? |
Solutions and gases |
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What may affect the diffusion rate |
The difference in concentration |
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What kind of molecules can diffuse through cell membranes |
Only very small molecules like oxygen |
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What is osmosis |
The movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low concentration |
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What is a partially permeable membrane? |
A membrane with very small holes so only small molecules can pass through it. |
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What is active transport |
When substances move against the concentration gradient from lower to higher concentration to lower concentration. |
