GCSE Biology – Diffusion
Learning Objectives
-I can define the term diffusion
-I can recall which substances are moved by diffusion
-I can describe the process of diffusion
-I can explain how different factors affect diffusion
-I can describe the advantage of having a large surface area to volume ratio and give examples
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Question 1 of 25
1. Question
What is one definition for diffusion?
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Question 2 of 25
2. Question
What is one definition for diffusion?
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Question 3 of 25
3. Question
What do particles travel across as part of diffusion?
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Question 4 of 25
4. Question
Which ways can substances move via diffusion?
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Question 5 of 25
5. Question
What is the energy source for diffusion?
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Question 6 of 25
6. Question
What does net movement mean?
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Question 7 of 25
7. Question
What equation is used to represent net movement?
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Question 8 of 25
8. Question
What type of substances can take part in diffusion?
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Question 9 of 25
9. Question
What type of substances can take part in diffusion?
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Question 10 of 25
10. Question
What gases are exchanged by diffusion in the body?
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Question 11 of 25
11. Question
What is exchanged in the small intestine?
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Question 12 of 25
12. Question
What is exchanged in the lungs?
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Question 13 of 25
13. Question
What is exchanged to the placenta?
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Question 14 of 25
14. Question
What is exchanged in nerve cells?
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Question 15 of 25
15. Question
What is exchanged in the roots of plants?
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Question 16 of 25
16. Question
What waste product is removed by diffusion from body cells for excretion?
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Question 17 of 25
17. Question
How are exchange surfaces and organs specialised for diffusion?
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Question 18 of 25
18. Question
How are the lungs adapted to carry out diffusion?
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Question 19 of 25
19. Question
How are the roots of a plant adapted to carry out diffusion?
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Question 20 of 25
20. Question
What affects the rate of diffusion?
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Question 21 of 25
21. Question
What affects the rate of diffusion?
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Question 22 of 25
22. Question
How would an organism increase its rate of diffusion?
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Question 23 of 25
23. Question
What does a high surface area to volume ratio mean?
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Question 24 of 25
24. Question
Why do multicellular organisms need exchange surfaces?
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Question 25 of 25
25. Question
Why don’t unicellular organisms need exchange surfaces?
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