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| Question | Answer |
| Why do cells use active transport? | To absorb substances across partially permeable membranes |
| In what direction does the substances travel during active transport? | AGAINST the concentration gradient |
| What does active transport require? | The use of energy released in respiration |
| Give an example of when active transport is carried out by cells? | - Active transport is used by roots to absorb mineral ions - By kidney tubules to reabsorb glucose |
| What is meant by against the concentration gradient? | Particles move from a region of lower concentration to a region of higher concentration |
| Describe the steps of Active transport in a cell |
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| Describe how Active transport is used in Roots |
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