Question

what is being reduced in phase 2 (reduction) of the calvin cycle? (note: sometimes the calvin cycle is called the light - independent reactions...but this term ca be misleading.) the carbons in pga the carbons in nadph the carbons in atp

Explanation:

In the Calvin Cycle's reduction phase, PGA (phosphoglyceric acid) is reduced. NADPH donates electrons (acts as a reducing agent) to convert PGA to G3P (glyceraldehyde - 3 - phosphate). ATP provides energy for this process. NADPH is an electron - carrier (not a molecule with carbons being reduced in the context of PGA reduction), and ATP is an energy - carrier (not involved in carbon reduction of PGA in the way described in the options).

Answer:

the carbons in PGA