Combined Science GCSE
Osmosis
What Osmosis means in Combined Science GCSE, as defined for AQA.
Definitions of Osmosis
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Reference: AQA
Water moves down a water potential gradient across a partially permeable membrane from the more dilute soil solution into the cell contents.
The diffusion of water molecules across a partially permeable membrane from a dilute solution to a concentrated solution, also passive.
A process by which water moves across the membrane.
Topics that use Osmosis
- Active transport (AQA GCSE)
- Animal and plant cells (AQA GCSE)
- Plant organ system (AQA GCSE)
Related terms
- Active transport
- Active transport against a concentration gradient
- Aerobic respiration
- Calculating rates from measurements
- Carrier proteins
- Cell membrane
- Cell respiration
- Cell specialisation and adaptation
Using Osmosis in the exam
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