Question

Which of the following events does not occur in photosynthesis ?

• A. oxidation of carbon to carbon dioxide
• B. absorption of light energy by chlorophyll
• C. conversion of light energy into chemical energy
• D. reduction of carbon dioxide to carbohydrates

Answer 1

The correct option is A oxidation of carbon to carbon dioxide

The process of photosynthesis takes place in the green leaves of a plant in three steps.

• Absorption of sunlight energy by chlorophyll.
• Conversion of light energy into chemical energy, and splitting of water into hydrogen and oxygen by light energy which is the photolysis reaction.
• Reduction of carbon dioxide by hydrogen to form carbohydrate like glucose by utilising the chemical energy (obtained by the transformation of light energy).