What determines the direction of the Rubisco-catalyzed reaction? A)the concentration of O₂ alone B)the concentration of CO₂ alone C)the CO₂/O₂ ratio available to the enzyme D)Rubisco itself E)cofactors for Rubisco

Question

Quizplus · Accepted Answer

The ratio of the substrate to the competitive inhibitor, CO₂/O₂, determines the direction of the Rubisco-catalyzed reaction as this ratio directly affects the binding of the substrate and inhibitor to the enzyme. Specifically, a higher concentration of CO₂ relative to O₂ will favor the formation of the Rubisco-CO₂ complex and the carboxylation reaction, while a higher concentration of O₂ relative to CO₂ will favor the Rubisco-O₂ complex and the oxygenation reaction.

What Determines the Direction of the Rubisco-Catalyzed Reaction