NAPDH is important in photosynthesis because it
A) becomes oxidized to form NADP.
B) is needed to form chlorophyll and carotenoids.
C) provides additional oxygen atoms from the breakdown of water.
D) provides high-energy electrons needed to store energy in organic molecules.
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The correct response is D. Electrons carried by NADPH are used to reduce carbon dioxide to the organic molecule known as glucose. Glucose is a carbohydrate. Glucose contains stored chemical energy and is used by consumers in respiration as an energy source.
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