| Lesson Plan |
| Grade: |
Date: 25/02/2026 |
| Subject: Biology |
| Lesson Topic: Explain the importance of active transport for movement of molecules or ions across membranes, including ion uptake by root hairs. |
Learning Objective/s:
- Describe the principle of active transport and why it requires energy.
- Explain how ATP‑driven pumps create electrochemical gradients.
- Compare primary and secondary active transport mechanisms.
- Illustrate the steps by which root hair cells uptake essential ions.
- Evaluate factors that influence the rate of active transport in plant cells.
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Materials Needed:
- Projector or interactive whiteboard
- PowerPoint slides on active transport
- Handout with a labelled root‑hair diagram
- Worksheet with comparison table and practice questions
- Model of a cell membrane (optional)
- Markers and chart paper for group activity
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Introduction:
Begin with a short video showing nutrients moving into plant roots. Ask students what they already know about how ions cross cell membranes and point out that many moves go against concentration gradients. State that by the end of the lesson they will be able to explain why energy is needed and describe the steps of ion uptake by root hairs.
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Lesson Structure:
- Do‑now (5'): students answer a quick question on diffusion vs active transport on the board.
- Mini‑lecture (10'): key concepts of active transport, ATP, primary vs secondary mechanisms.
- Interactive diagram (10'): projected root‑hair diagram is labelled together, highlighting pumps and co‑transporters.
- Group activity (15'): worksheet comparing mechanisms and discussing factors such as temperature and ATP availability.
- Check for understanding (5'): rapid quiz (Kahoot) with exam‑style questions.
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Conclusion:
Recap the main points: active transport uses ATP to move ions against gradients and root hairs rely on H⁺ pumps and co‑transporters. Students complete an exit ticket summarising one example of primary and one of secondary transport. For homework, they research a real‑world agricultural application of active transport.
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