In the carbon reduction phase of the Calvin cycle, electrons from NADPH are donated to a metabolic intermediate to form G3P molecules.

Which statement is NOT true regarding G3P?
A.G3P molecules are involved in the regeneration of RuBP.
B.G3P molecules affect the activity of the enzyme rubisco.
C.G3P molecules have more potential energy than PGA molecules.
D.G3P molecules are used to synthesize glucose and other sugars.

C. G3P molecules have more potential energy than PGA molecules.