PLANT PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Energy and water
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ATP and ADP
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ATP and NADPH
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NADP and NADPH
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Detailed explanation-1: -The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH.
Detailed explanation-2: -ATP and NADPH produced by the light-dependent reactions of the photosystems are used by the Calvin cycle in the stroma of the chloroplast. Molecules of CO2 gas are fixed into molecules of 3-phosphoglycerate in a reaction catalyzed by the enzyme Rubisco.
Detailed explanation-3: -The overall purpose of the light-dependent reactions is to convert solar energy into chemical energy in the form of NADPH and ATP. This chemical energy will be used by the Calvin cycle to fuel the assembly of sugar molecules.
Detailed explanation-4: -The NADPH and ATP obtained from the light reaction along with carbon dioxide is utilised to form glucose.