Question

Which of the following are required for the light reaction of Photosynthesis?
A. $CO_2$
B. $O_2$
C.$H_2O$
D. Chlorophyll
E. Light
Choose the correct answer from the options given below

• A. A, C, D and E only
• B. C, D and E only
• C. A and B only
• D. A, C and E only

Answer 1

Answer: (B)

C, D and E only

Answer 2

The light reaction of photosynthesis requires water (H2O), chlorophyll, and light.
CO2 is used in the dark reaction (Calvin cycle).
O2 is a product of photosynthesis.