Question Detail
Question
The typical reducing agent in photosynthesis is _________
Correct Answer
Option D is the correct answer.
Detailed Explanation
NADPH (nicotinamide adenine dinucleotide phosphate) is the primary reducing agent (or reductant) in photosynthesis. It donates high-energy electrons to reduce carbon compounds in the Calvin cycle. NADH and FADH2 are reducing agents in cellular respiration.
Hint
Which reduced coenzyme provides the 'reducing power' for the Calvin cycle?