試題詳解

9. The major difference between a typical C₄ plant and a C₃ plant, is that
(A) The C₃ plant has a smaller opening of stomata, so that less CO₂ can enter the plant.
(B) The C4 plant only uses PEP carboxylase to catalyze all carbon fixation.
(C) Rubisco in C₄ plant has a high binding affinity to CO₂ than that in the C₃
(D) The carbon fixation rate in C₄ plants is always higher than C₃ under various growth temperatures.
(E) The C₄ plant only carries out the Calvin cycle only in the chloroplasts of bundle-sheath cells.