A one-topic revision summary for AQA GCSE Biology Paper 1, Cell Biology. It explains how carrier proteins use energy from respiration to move substances against a concentration gradient, compares active transport with diffusion and osmosis, and gives real examples in root hair cells and the small intestine, with the evidence that active transport needs energy.
- 6 slides
- AQA GCSE Biology Paper 1
- Revision summary
- Exam tips included
- Fully editable
Download this PowerPoint free (.pptx)
What the PowerPoint covers
- What active transport is: movement against a concentration gradient using carrier proteins and ATP.
- Diffusion, osmosis and active transport compared: a table of direction, energy, membranes and examples.
- Real examples: mineral ions into root hair cells, glucose absorption in the gut and more.
- Evidence for active transport: what metabolic poisons, lack of oxygen and temperature show.
- Key vocabulary and exam tips: carrier proteins, ATP, respiration and how to avoid common mistakes.
Who it is for
GCSE biology and combined science students (Foundation and Higher) revising Cell Biology, and teachers who want a ready made summary for a recap starter, homework or revision lesson. Written for the AQA specification, and just as useful for other exam boards.
Download this PowerPoint free (.pptx)
More resources
The full Cell Biology revision set: cell structure, microscopy, diffusion, osmosis, cell division and stem cells. Browse all premium PowerPoints, or find more teacher made slides in our free biology PowerPoints.