Question

Which of the following products of photosynthesis are used in dark reaction?

• A. ATP
• B. $NADPH + CO_2$
• C. Water and oxygen
• D. NADPH + ATP

Answer 1

Answer: (D)

The ATP and NADPH produced during light dependent reaction provide energy and reducing power, respectively for ensuring light independent reaction (dark reaction), which cannot be sustained without the ATP generated by the light dependent reaction. Water is oxidised (photolysis) in PS-II of light reaction of photosynthesis and release $O_{2}$ as by