Question

C4 plants differ from C3 plants because they

• A. produce a four-carbon final sugar product
• B. require four times the solar energy to produce a sugar molecule
• C. form a C4 molecule prior to entering the Calvin cycle
• D. run photosynthesis at night when water loss through stomata is minimized

Answer 1

The correct option is C

form a C4 molecule prior to entering the Calvin cycle

They form oxaloacetate as the first visible product.