Question

The specific function of light energy during photosynthesis is to

• A. Split water
• B. Activate chlorophyll
• C. Reduce carbon dioxide
• D. Synthesize glucose.

Answer 1

The correct option is (B):

Explanation of the correct option:

1. ​The light energy from the sun produces the energy for converting the electron to a charged state.
   
2. The chlorophyll is activated inside the chloroplast which activates the process of photosynthesis.

Explanation of the incorrect options:

Option (A):

1. ​The water splitting is called the photolysis of water and it is caused due to the energy from the photon particles.
2. This is a process related to light energy but not the major function of the light energy.
   

Option (C):

1. ​The carbon dioxide is fixed during the dark phase of photosynthesis and not in the presence of light.
   

Option (D):

1. The entire process of photosynthesis involves the synthesis of glucose and it always requires the energy from the sun. ​
2. But the process can occur only after carbon fixation.
   

Final Answer: The specific function of light energy during photosynthesis is to activate chlorophyll.