GCSE Biology – Limiting photosynthesis

Last updated: 05/06/2020
AQA Oxford GCSE Science – Combined science higher Bioenergetics 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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  1. Current
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  3. Answered

  1. Why are maximising limiting factors important?

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  2. How many limiting factors can there be?

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  3. Which factor limits rate of photosynthesis in a plant?

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  4. Which factor limits rate of photosynthesis in a plant?

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  5. Which factor limits rate of photosynthesis in a plant?

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  6. Which factor limits rate of photosynthesis in a plant?

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  7. Which factor limits rate of photosynthesis in a plant?

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  8. As light intensity increases , what happens to rate of photosynthesis?

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  9. As carbon dioxide concentration increases, what happens to rate of photosynthesis?

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  10. As temperature increases, what happens to rate of photosynthesis?

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  11. At what temperature is the optimum rate of photosynthesis for most plants?

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  12. Why is the optimum temperature for most plants 15 °C?

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  13. What happens when temperature increases past 30 °C?

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  14. What gas is being produced by the plant?

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  15. How do we prepare a plant to measure its rate of photosynthesis?

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  16. How do we measure rate of photosynthesis from the plant cut?

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  17. How do we make the experiment more accurate?

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  18. How do we test light intensity’s effect on photosynthesis?

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  19. If distance to a light source gets 4x bigger, what happens to light intensity?

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  20. When the lamp is moved 2x further away, what should happen to the number of bubbles?

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  21. If distance to a light source gets 2x bigger, what happens to light intensity?

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  22. What is the inverse square law?

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  23. What is the limiting factor for photosynthesis for a plant in a densely planted greenhouse in the UK summer?

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  24. How can we make the method of measuring volume of CO2_2 better?

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  25. What is the limiting factor for photosynthesis for a plant in the UK at 3am in July?

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