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
Correct Answer
C
Food is oxidized to release carbon dioxide and water
D
Oxygen is taken, and carbon dioxide and water vapour are given out
Explanation
Photosynthesis converts solar energy (free energy) into chemical energy (potential energy) stored in the bonds of glucose molecules, making option (B) correct. Option (C) is a common distractor but is incorrect because it describes cellular respiration, the reverse process where food is oxidized to release energy. The core concept tested is the transformation of energy from an external source into a stored form within biological systems.
Plant PhysiologyPhotosynthesis ProcessPhotosynthesispotential energyfree energyfood oxidationcarbon dioxidewateroxygen