Criado por Sam Gunnell
mais de 5 anos atrás
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Questão | Responda |
Define osmosis | The movement of water molecules across a partially permeable membrane down the water potential gradient, from an area of higher water potential to an area of lower water potential |
Across what membrane does osmosis occur? | Partially permeable |
What is the water potential of pure water? | 0 |
Define water potential | The tendency for water to leave a solution |
What happens to the water potential when a solute is added to a solution? | The water potential decreases |
Are values of water potential always positive or negative? | Negative |
What is an isotonic solution? | When the two solutions have the same concentration |
What happens to a cell in a isotonic solution? | Nothing |
What is a hypotonic solution? | Where the concentration of the solution is less than that of the cell in it |
What is a hypertonic solution? | A hypertonic solution has a greater concentration of solutes than the cell in it |
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