Dark reaction in photosynthesis is called so because
a. It does not depend on light energy
b. It cannot occur during day light
c. It occurs during day light
d. It can occur in dark also
Answer - The answer is the option a. It does not depend on light energy
Explanation - Light reaction occurs due to the presence of light when the splitting of water molecules can take place. This results in the formation of ATP. The entire reaction is termed as a light reaction. However, further steps do not depend on the presence of light, and hence the process is termed as a dark reaction. This does not indicate that the process occurs in the dark and not during daytime.