If you decreased the pH inside the lumen of the thylakoids while the light reactions were occurring, which of the following photosynthetic processes would you expect to be immediately affected? Only the carbon fixation (carboxylation) steps in the Calvin cycle Only the reduction steps in the Calvin cycle Both the reduction and regeneration steps in the Calvin cycle Only the regeneration steps in the Calvin cycle The carbon fixation (carboxylation) and reduction steps in the Calvin cycle
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Step 1: Decreasing the pH inside the lumen of the thylakoids means that there is an increase in H+ ions, which are used in the proton gradient for ATP synthesis during the light reactions of photosynthesis. Show more…
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The NADPH produced during the light reactions is necessary for a. the carbon fixation phase, which incorporates carbon dioxide into an organic molecule of the Calvin cycle. b. the reduction phase, which produces carbohydrates in the Calvin cycle. c. the regeneration of RuBP of the Calvin cycle. d. all of the above. e. a and b only.
The NADPH produced during the light reactions is necessary for a. the carbon fixation phase, which incorporates carbon dioxide into an organic molecule during the Calvin cycle. b. the reduction phase, which produces carbohydrates in the Calvin cycle. c. the regeneration of RuBP of the Calvin cycle. d. all of the above. e. a and b only.
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Which of the following does not occur during the Calvin cycle? a. carbon fixation b. oxidation of NADPH c. consumption of ATP d. release of oxygen
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