Form 4 Biology Chapter 3: Movement of Substances Across a Plasma Membrane — quick-answer mode!
⚡ Quick Questions
1. What is the main component of the plasma membrane?
2. State the two types of proteins found in the plasma membrane.
3. Define simple diffusion.
4. What is osmosis?
5. What is meant by water potential?
6. State one example of a substance transported by simple diffusion.
7. What is facilitated diffusion?
8. Does facilitated diffusion require energy? Why?
9. What is active transport?
10. Why does active transport require energy?
11. What happens to a plant cell in a hypotonic solution?
12. What happens to a plant cell in a hypertonic solution?
13. What is plasmolysis?
14. Why does a plant cell not burst when placed in a hypotonic solution?
15. State one difference between active transport and passive transport.
Send your answers one by one or all at once, and I’ll mark each point with ✅/❌. 🫶🧬
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