GCSE Biology – Limiting photosynthesis
Learning Objectives
-I can explain that more than one factor may be limiting the rate of photosynthesis
-I can explain the graphs showing how a limiting factor will affect the rate of photosynthesis
-I can use the inverse square law to explain the relationship between photosynthesis rate and light distance
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Question 1 of 26
1. Question
Why are maximising limiting factors important?
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Question 2 of 26
2. Question
How many limiting factors can there be?
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Question 3 of 26
3. Question
Which factor limits rate of photosynthesis in a plant?
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Question 4 of 26
4. Question
Which factor limits rate of photosynthesis in a plant?
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Question 5 of 26
5. Question
Which factor limits rate of photosynthesis in a plant?
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Question 6 of 26
6. Question
Which factor limits rate of photosynthesis in a plant?
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Question 7 of 26
7. Question
Which factor limits rate of photosynthesis in a plant?
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Question 8 of 26
8. Question
As light intensity increases , what happens to rate of photosynthesis?
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Question 9 of 26
9. Question
As carbon dioxide concentration increases, what happens to rate of photosynthesis?
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Question 10 of 26
10. Question
As temperature increases, what happens to rate of photosynthesis?
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Question 11 of 26
11. Question
At what temperature is the optimum rate of photosynthesis for most plants?
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Question 12 of 26
12. Question
Why is the optimum temperature for most plants 15 °C?
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Question 13 of 26
13. Question
What happens when temperature increases past 30 °C?
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Question 14 of 26
14. Question
What gas is being produced by the plant?
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Question 15 of 26
15. Question
How do we prepare a plant to measure its rate of photosynthesis?
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Question 16 of 26
16. Question
How do we measure rate of photosynthesis from the plant cut?
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Question 17 of 26
17. Question
How do we make the experiment more accurate?
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Question 18 of 26
18. Question
How do we test light intensity’s effect on photosynthesis?
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Question 19 of 26
19. Question
If distance to a light source gets 4x bigger, what happens to light intensity?
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Question 20 of 26
20. Question
When the lamp is moved 2x further away, what should happen to the number of bubbles?
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Question 21 of 26
21. Question
If distance to a light source gets 2x bigger, what happens to light intensity?
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Question 22 of 26
22. Question
What is the inverse square law?
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Question 23 of 26
23. Question
What is the limiting factor for photosynthesis for a plant in a densely planted greenhouse in the UK summer?
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Question 24 of 26
24. Question
How can we make the method of measuring volume of CO_2 better?
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Question 25 of 26
25. Question
What is the limiting factor for photosynthesis for a plant in the UK at 3am in July?
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Question 26 of 26
26. Question
How can we tell which is the limiting factor in photosynthesis graphs?
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