Photosynthesis: Light Independent Reactions

What is the primary purpose of the light dependent reactions in photosynthesis?

• To regenerate ribulose bisphosphate

• To produce glucose directly

• To generate ATP and reduced NADP

• To split carbon dioxide

During the fixation stage of the Calvin cycle, which enzyme catalyzes the reaction between ribulose bisphosphate and carbon dioxide?

• ATP synthase

• Phosphofructokinase

• NADP reductase

• Rubisco

In the reduction stage of the Calvin cycle, what is the three-carbon sugar that is formed?

• Glucose

• Ribulose bisphosphate

• Glycerate 3-phosphate

• Triose phosphate

What is the significance of the regeneration stage in the Calvin cycle?

• It produces oxygen

• It regenerates ribulose bisphosphate

• It fixes carbon dioxide

• It splits water molecules

How many turns of the Calvin cycle are required to produce one molecule of glucose?

• Three

• Four

• Eight

• Six