Gas and Solute Exchange
- Created by: nicola grantham
- Created on: 28-03-11 19:24
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- Life processes need gases/dissolved substances to occur.
- Waste substances need to be removed from cells.
- The substances are moved via:
- diffusion
- osmosis
- active transport
- Diffusion - this is when particles move from a high concentration to a low concentration.
- smells (gases)
- dissolved particles through cell membranes.
- Osmosis - (only refers to water) Water moves from a high concentration to a low concentration through a partially permeable membrane.
- In most life processes gases and dissolved substances have to move through an exchange surface and many of these are…
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