Both C₃and C₄plants have the enzymes of the Calvin cycle. How are C₄plants more efficient than C₃plants at fixing carbon? A) C₄plants fix carbon using the Calvin cycle; C₃plants use the reverse of glycolysis, a series of reactions that requires more energy in the form of ATP. B) In C₄plants, carbon fixation takes place in mesophyll cells, whereas the Calvin cycle takes place in bundle- sheath cells. C) Both the carbon fixation reaction and the Calvin cycle take place in mesophyll cells, but the carbon fixation reactions take place in the dark, and the Calvin cycle is light dependent. D) C₄plants do not have rubisco and therefore do not undergo photorespiration.

Question

Quizplus · Accepted Answer

C4 plants (represented here as C₄plants) are more efficient than C3 plants (C₃plants) because they minimize photorespiration by separating the initial carbon fixation and the Calvin cycle between mesophyll and bundle-sheath cells, respectively.

Both C3 and C4 plants Have the Enzymes of the Calvin

Both C₃and C₄plants Have the Enzymes of the Calvin