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Multiple Choice
Which of the following are products of the light reactions of photosynthesis?
A
Glucose and oxygen
B
ATP and NADPH
C
Carbon dioxide and water
D
Pyruvate and acetyl-CoA
Verified step by step guidance
1
Understand the process of photosynthesis, which consists of two main stages: light reactions and the Calvin cycle (dark reactions).
Recognize that light reactions occur in the thylakoid membranes of chloroplasts and are responsible for converting solar energy into chemical energy.
Identify the primary products of the light reactions. These include ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate), which are essential for the subsequent Calvin cycle.
Note that oxygen is also produced during the light reactions as a byproduct of water splitting (photolysis), but glucose is not directly produced in this stage.
Clarify that carbon dioxide and water are reactants in photosynthesis, while pyruvate and acetyl-CoA are involved in cellular respiration, not photosynthesis.