AQA GCSE Combined Science Trilogy · 8464
Specification 4.1.3.3, 4.2.3.2 · Paper 1
Revise: Active transportActive transport moves substances across a cell membrane from a more dilute solution to a more concentrated solution. In other words, it moves them from lower to higher concentration, against the concentration gradient.
- Revise: Plant transport structures and processes
The movement of substances against their concentration gradient, from a lower to a higher concentration, using energy released by respiration.