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| Questão | Responda |
| What is diffusion? | Diffusion is the spreading of the particles of a gas, or of any substance in solution, resulting in a net movement from a region where they are of a higher concentration to a region with a lower concentration. The greater the difference in concentration, the faster the rate of diffusion. |
| What is osmosis? | Osmosis is the movement of water from a lower concentrated solution to a higher concentrated solution through a partially(semi-) permeable membrane. |
| What is Active Transport? | The movement of molecules across a cellular membrane from lower to higher concentration. It requires energy. |
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