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13 Cards in this Set
- Front
- Back
State the optimal conditions of photosynthesis. |
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Explain how light intensity affects the rate of photosynthesis. |
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Explain how temperature affects the rate of photosynthesis. |
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State four things that occur in plants at high temperatures that would negatively affect photosynthesis. |
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What is the percentage of carbon dioxide in the air? |
0.04% |
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What happens if the percentage of carbon dioxide goes higher than 0.4%? |
The stomata will start to close. |
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What is the point B on this graph called? What does it mean? |
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What is the limiting factor in this graph? |
Temperature as both these graphs level off when light intensity is no longer the limiting factor. The 25C graph levels off at a point higher than the 15C one, showing that 15C temperature must be a limiting factor. |
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What is the limiting factor for this graph? |
The CO2 concentration as the graph levels off when light intensity is no longer the limiting factor and the temperatures are the same. |
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How can water stress affect photosynthesis? |
When there is little water, the stomata will close to conserve water. This does not allow a lot of CO2 to enter the leaf for the Calvin cycle, slowing photosynthesis down. |
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How does light intensity affect the levels of GP, RuBP and TP? |
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How does temperature affect the levels of GP, RuBP and TP? |
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How does carbon dioxide levels affect the levels of GP, RuBP and TP? |
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