The passive overall movement of particles from a region of their higher concentration to a region of their lower concentration
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What does 'passive' mean?
It takes place 'without needing energy'
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What is osmosis?
The overall movement of water from a dilute to a more concentrated solution through a partially permeable membrane
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What is a partially permeable membrane?
A membrane that only allows certain substances to diffuse through it
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How do plants take in water?
By osmosis
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Why in plants, is water drawn to the roots by osmosis?
There is usually a higher concentration of water in soil than inside the plant
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What is active transport?
The overall movement of chemicals across a cell membrane from a region of lower concentration to a region of higher concentration using energy released by respiration
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What do plants use diffusion for?
Photosynthesis - the gases pass in and out of plant leaves
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What do plants use active transport for?
To move minerals from the soil into the root cells
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