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Multiple Choice
In the context of organic chemistry reactions, what are the products of the light-dependent reaction in photosynthesis?
A
Pyruvate and acetyl-CoA
B
ATP and NADPH
C
Glucose and oxygen
D
Carbon dioxide and water
Verified step by step guidance
1
Understand that the light-dependent reactions of photosynthesis occur in the thylakoid membranes of chloroplasts and are crucial for converting solar energy into chemical energy.
Recognize that the primary purpose of the light-dependent reactions is to produce energy-rich molecules that will be used in the Calvin cycle (light-independent reactions).
Identify the key products of the light-dependent reactions: ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate). These molecules store energy and reducing power, respectively.
Note that oxygen is also produced as a byproduct of the light-dependent reactions, resulting from the splitting of water molecules (photolysis) to provide electrons.
Conclude that the correct products of the light-dependent reactions are ATP and NADPH, which are essential for the subsequent synthesis of glucose in the Calvin cycle.