Question

Identify the correct sequence of steps in the process of photosynthesis.

• A. Absorption of light by chlorophyll → Splitting of water to 2H⁺ and [O] → Reduction of CO₂ → Carbohydrate formation
• B. Splitting of water to 2H⁺ and [O] → Reduction of CO₂ → Absorption of light by Chlorophyll → Carbohydrate formation
• C. Splitting of water to 2H⁺ and [O] → Absorption of light by Chlorophyll → Reduction of CO₂ → Carbohydrate formation
• D. Absorption of light by Chlorophyll → Reduction of CO₂ → Splitting of water to 2H⁺ and [O] → Carbohydrate formation

Answer 1

The correct option is A

Absorption of light by chlorophyll → Splitting of water to 2H⁺ and [O] → Reduction of CO₂ → Carbohydrate formation

In the process of photosynthesis, sunlight is first trapped by chlorophyll present in the leaves. This solar energy is used for the photolysis (splitting) of water molecules into oxygen and hydrogen. This is a light-dependent reaction. This is followed by reduction of carbon dioxide into carbohydrates by various plant enzymes. This is a light independent reaction.