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Multiple Choice
In the context of photosynthesis, what is the primary function of NADP+?
A
To catalyze the conversion of CO2 to glucose
B
To absorb light energy
C
To provide energy for the Calvin cycle
D
To act as a carrier of electrons and hydrogen ions
Verified step by step guidance
1
Understand the role of NADP+ in photosynthesis: NADP+ (Nicotinamide adenine dinucleotide phosphate) is a coenzyme that plays a crucial role in the light-dependent reactions of photosynthesis.
Recognize the process of electron transport: During the light-dependent reactions, light energy is used to split water molecules, releasing electrons, protons (H+ ions), and oxygen.
Identify the function of NADP+: NADP+ acts as an electron acceptor, capturing the electrons and hydrogen ions (H+) released from water molecules.
Explain the formation of NADPH: Once NADP+ accepts electrons and hydrogen ions, it is reduced to form NADPH, which is a high-energy molecule.
Connect NADPH to the Calvin cycle: NADPH provides the necessary reducing power (electrons and hydrogen) for the Calvin cycle, where it helps convert carbon dioxide into glucose.