The major events during photosynthesis(using light energy, carbohydrates is formed) are:
Absorption of light by the chlorophyll pigment.
Conversion of light energy to the chemical energy and photolysis(splitting) of water into oxygen, hydrogen, and electron.
Fixation of carbon into carbohydrates by Calvin cycle.
Final Answer:
In photosynthesis, the light energy is converted to produce carbohydrates and these carbohydrates are metabolised to form other compounds and used as requirement for energy generation.