What is the overall reaction for the Calvin cycle, or dark reactions? A) 2 H₂O + 2 NADP⁺+ 3 ADP + 3 P_i $\rightarrow$O₂ + 2 NADPH + 3 ATP B) 3 CO₂ + 6 NADPH + 9 ATP + 6 H₂O $\rightarrow$Glyceraldehyde-3-phosphate + 6 NADP⁺+ 9 ADP + 9 P_i C) 6 CO₂ + 6 NADPH + 12 ATP $\rightarrow$ Glucose + NADP⁺+ ADP + P_i D) Glucose $\rightarrow$ 9 ATP + 12 NADPH + 6 CO₂ + 6 H₂O

Question

Quizplus · Accepted Answer

The overall reaction for the Calvin cycle involves the fixation of carbon dioxide into glyceraldehyde-3-phosphate (G3P) using energy from ATP and NADPH produced in the light reactions. The reaction shown in Choice B correctly displays the reactants and products of the Calvin cycle, including the use of 9 ATP and 6 NADPH to produce one molecule of G3P. The other choices either have incorrect reactants and products or do not display the use of ATP and NADPH in the reaction.

What Is the Overall Reaction for the Calvin Cycle, or Dark