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What is the role of ATP synthase in photosynthesis?
What is the role of ATP synthase in photosynthesis?
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Practice Questions
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Q1
What is the role of ATP synthase in photosynthesis?
To absorb light
To fix carbon
To synthesize ATP
To transport electrons
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ATP synthase synthesizes ATP from ADP and inorganic phosphate during the light reactions.
Questions & Step-by-step Solutions
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Q
Q: What is the role of ATP synthase in photosynthesis?
Solution:
ATP synthase synthesizes ATP from ADP and inorganic phosphate during the light reactions.
Steps: 8
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Step 1: Understand that ATP synthase is an enzyme found in the chloroplasts of plant cells.
Step 2: Know that photosynthesis has two main stages: light reactions and the Calvin cycle.
Step 3: Focus on the light reactions, which occur in the thylakoid membranes of chloroplasts.
Step 4: During the light reactions, sunlight is captured and used to split water molecules, releasing oxygen.
Step 5: This process creates a flow of protons (H+ ions) across the thylakoid membrane.
Step 6: ATP synthase uses the energy from this flow of protons to combine ADP (adenosine diphosphate) and inorganic phosphate (Pi).
Step 7: The combination of ADP and Pi forms ATP (adenosine triphosphate), which is an energy carrier.
Step 8: ATP produced by ATP synthase is then used in the Calvin cycle to help convert carbon dioxide into glucose.
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