Substances move in and out of cells using different transport processes.
Complete the table by identifying the primary biochemical or cellular process used for each example of substance movement.
| Example of substance movement | Process |
|---|---|
| Oxygen moving from the alveoli into blood capillaries | |
| Glucose being absorbed from the gut into epithelial cells against a concentration gradient | |
| Water moving from the soil into a plant root hair cell |
Explain how the structure of the alveoli in human lungs is adapted for the efficient exchange of gases.
23 exam-style questions on Edexcel IGCSE Biology Movement of substances into and out of cells. Each one has a worked solution and a mark scheme showing where the marks go.