Combined Science GCSE
Active transport against a concentration gradient
What Active transport against a concentration gradient means in Combined Science GCSE, as defined for AQA.
Definition of Active transport against a concentration gradient
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Reference: AQA
Ions are moved from the more dilute soil solution into the more concentrated cell contents, against the concentration gradient, using energy from respiration and carrier proteins in the cell membrane.
Topics that use Active transport against a concentration gradient
- Active transport (AQA GCSE)
Related terms
- Active transport
- Carrier proteins
- Cell respiration
- Concentration gradient
- Diffusion
- Direction of movement relative to concentration gradients
- Energy requirements and carrier proteins
- Mineral ions and healthy plant growth
Using Active transport against a concentration gradient in the exam
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