GCSE Biology – Factors affecting diffusion

Last updated: 26/05/2020
WJEC GCSE Science – Double science foundation Cells and movement across cell membranes GCSE Biology – Factors affecting diffusion

Learning Objectives

-I can explain the factors that affect the rate of diffusion
-I can use Ficks law to calculate the rate of diffusion

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  1. What is the definition of diffusion?

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  2. What is the definition of diffusion?

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  3. How many factors affect the rate of diffusion?

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  4. What affects the rate of diffusion?

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  5. What affects the rate of diffusion?

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  6. What affects the rate of diffusion?

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  7. What happens if the diffusion distance gets larger?

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  8. What happens if the diffusion distance gets smaller?

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  9. What happens to the rate of diffusion if there is a larger difference in concentration?

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  10. What happens to the rate of diffusion if there is a smaller difference in concentration?

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  11. What happens to the rate of diffusion if there is a larger surface area?

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  12. What happens to the rate of diffusion if there is a smaller surface area?

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  13. Why does diffusion happen slower when the diffusion distance is larger?

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  14. Why does diffusion happen quicker when the diffusion distance is smaller?

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  15. What is Fick’s Law?

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  16. What type of equation is Fick’s Law?

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  17. What is the sign signifying a proportional equation?

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  18. What is the sign signifying an inversely proportional equation?

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  19. What is the rate of diffusion proportional to?

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  20. What is the rate of diffusion proportional to?

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  21. What is the rate of diffusion inversely proportional to?

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  22. What is the Fick’s Law equation?

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  23. When will the rate of diffusion double?

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  24. When will the rate of diffusion double?

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  25. When will the rate of diffusion double?

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