In C3 plants CO2 is first incorporated into ______ whereas in C4 and CAM plants the CO2 is first incorporated into and subsequently put into ______ the Calvin cycle by Rubisco. 3-phosphoglycerate; oxaloacetate dihydroxyacetone phosphate; malate 3-phosphoglycerate; malate glyceraldehyde-3-phosphate; erythrose-4-phosphate