Which of the following correctly describes CO₂ fixation in a C3 plant? A) Rubisco combines CO₂ with RuBP to form a 6-carbon compound that then breaks down into two 3-carbon compounds. B) Rubisco combines CO₂ with a 2-carbon compound to form G3P. C) Rubisco combines CO₂ with a 2-carbon compound to form 3PG, which is then reduced to G3P. D) Rubisco combines 6 CO₂ molecules to form RuBP, which breaks down into two 3-carbon compounds. E) Rubisco combines 3 CO₂ molecules to form 3PG, which is then reduced to G3P.

Question

Quizplus · Accepted Answer

In C3 plants, Rubisco catalyzes the reaction of CO2 with RuBP (ribulose bisphosphate) to form a 6-carbon intermediate that quickly splits into two molecules of 3-phosphoglycerate (3PG), a 3-carbon compound.

Which of the Following Correctly Describes CO2 Fixation in a C3

Which of the Following Correctly Describes CO₂ Fixation in a C3