Question

Dark reaction in photosynthesis occurs in

• A. Presence of light
• B. Absence of light
• C. Absence or presence of light
• D. None of the above

Answer 1

The correct option is C

Absence or presence of light

The correct option is C.

Explanation of the correct option:

1. Photosynthesis is the process by which green plants manufacture carbohydrates from carbon dioxide and water in the presence of sunlight and chlorophyll.
2. There are two main phases of photosynthesis: the light-dependent phase or light reaction, and the light-independent phase or dark reaction.
3. The dark reaction is not dependent on light and may occur in the absence or presence of light.
4. It occurs in the stroma of the chloroplast, where the reduction of carbon dioxide to carbohydrates takes place.

Final Answer: Dark reaction in photosynthesis occurs in absence or presence of light.