Which process is described as the plant converting light energy into chemical energy stored as sugars?

Which process is described as the plant converting light energy into chemical energy stored as sugars?

• A. Photosynthesis
• B. Respiration
• C. Transpiration
• D. Germination

Answer: (A)

Light energy is captured by chlorophyll in chloroplasts and converted into chemical energy stored in sugars through photosynthesis. In the light-dependent reactions, light energy powers the production of ATP and NADPH while splitting water to release oxygen. The Calvin cycle then uses those energy carriers to fix carbon dioxide into sugars, building glucose and other carbohydrates. This creates stored chemical energy that the plant can later use for growth, metabolism, and maintenance. The other processes don’t build sugars from light: respiration releases energy from stored sugars, transpiration is the loss of water from leaves, and germination starts when a seed begins to grow.

Light energy is captured by chlorophyll in chloroplasts and converted into chemical energy stored in sugars through photosynthesis. In the light-dependent reactions, light energy powers the production of ATP and NADPH while splitting water to release oxygen. The Calvin cycle then uses those energy carriers to fix carbon dioxide into sugars, building glucose and other carbohydrates. This creates stored chemical energy that the plant can later use for growth, metabolism, and maintenance. The other processes don’t build sugars from light: respiration releases energy from stored sugars, transpiration is the loss of water from leaves, and germination starts when a seed begins to grow.