Question

The stage of photosynthesis that actually produces sugar is

• A. the Calvin cycle
• B. photosystem-l
• C. photosystem-Il
• D. the light reactions

Answer 1

Answer: (A)

the Calvin cycle

The reactions of the Calvin cycle add carbon (from carbon dioxide in the atmosphere) to a simple five-carbon molecule called RuBP. These reactions use chemical energy from NADPH and ATP that were produced in the light reactions. The final product of the Calvin cycle is glucose.

So, the correct option is, 'Calvin cycle'.