Rate of Photosynthesis (AQA GCSE Biology Combined Science): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What happens to enzymes when temperature exceeds the optimal point during photosynthesis?
What happens to enzymes when temperature exceeds the optimal point during photosynthesis?
They denature
Why doesn't photosynthesis rate keep rising with increasing light intensity indefinitely?
Why doesn't photosynthesis rate keep rising with increasing light intensity indefinitely?
Other factors become limiting
What role does carbon dioxide play in photosynthesis?
What role does carbon dioxide play in photosynthesis?
It is a key reactant
What is the function of chlorophyll in photosynthesis?
What is the function of chlorophyll in photosynthesis?
Captures light energy
How does magnesium deficiency affect photosynthesis?
How does magnesium deficiency affect photosynthesis?
Reduces chlorophyll levels
Which aquatic plant is commonly used to measure photosynthesis rate by oxygen production?
Which aquatic plant is commonly used to measure photosynthesis rate by oxygen production?
Pondweed
In the pondweed experiment, what is attached to the test tube to collect oxygen?
In the pondweed experiment, what is attached to the test tube to collect oxygen?
A capillary tube
What does the distance the gas bubble travels in the capillary tube represent?
What does the distance the gas bubble travels in the capillary tube represent?
Volume of oxygen produced
When testing one factor's effect on photosynthesis, what must be done with other factors?
When testing one factor's effect on photosynthesis, what must be done with other factors?
Keep them controlled
Why does increasing temperature initially speed up photosynthesis?
Why does increasing temperature initially speed up photosynthesis?
Process is enzyme-controlled