Question

Approximately how much of the solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis?

• A. Less than 1%
• B. Upto 2%
• C. 30%
• D. 50%

Answer 1

The correct option is B

Upto 2%

Of the total incident solar radiations, PAR or photosynthetically active radiation (that the plants utilize for photosynthesis) accounts for only 50 percent. And Out of the 50% that corresponds to PAR, green plants capture only about 2% of the total PAR that falls on their leaves for the process of photosynthesis, converting it into food energy.