Q. Which one of the following is the process involved in photosynthesis?
a) Potential energy is released to form free energy
b) Free energy is converted into potential energy and stored
c) Food is oxidized to release carbon dioxide and water
d) Oxygen is taken, and carbon dioxide and water vapour are given out
Question from Odisha OCS Paper 1 2024
The correct answer is: Option B: Free energy is converted into potential energy and stored.
Explanation: Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy (free energy) from the sun into chemical energy (potential energy) stored in the form of glucose or other carbohydrates. During this process, carbon dioxide and water are used as raw materials, and oxygen is released as a byproduct. The light energy is captured by chlorophyll and other pigments in the chloroplasts, and it is used to drive the synthesis of glucose, which stores the energy in its chemical bonds. This stored energy can later be used by the plant or other organisms for various metabolic activities.
