A plant cell has its thylakoid lumen pH artificially increased. As a result of this modification, the amount of NADPH in the chloroplast would most likely: A plant cell has its thylakoid lumen pH artificially increased. As a result of this modification, the amount of NADPH in the chloroplast would most likely: Decrease Increase Stay the same
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Predict which of the following would happen if a plant was exposed to a toxin that made the thylakoid membranes permeable to hydrogen ions. Group of answer choices The hydrogen ions necessary to generate NADPH from NADP+ would no longer be present. A reversal of the proton gradient across the thylakoid membrane would result such that the pH would be higher in the thylakoid lumen compared to the surrounding stoma. The hydrogen ion gradient across thylakoid membrane would be eliminated. The oxidation and reduction of the protein complexes in the electron transport chain would be prevented.
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QUESTION 3 What will happen to the pH inside a thylakoid that is exposed to light? A. It will increase. B. It will not change. C. It will remain neutral. D. It will decrease. QUESTION 4 If the biochemical reactions in a plant were interrupted so that the light reactions could occur, but nothing after the light could occur, what would be the immediate consequence(s) for the plant? A. O2 would not be released. B. CO2 would not be converted into glucose. C. Water would no longer be required as an electron source. D. All of the choices are correct. QUESTION 5
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