Which process do plants use to convert sunlight into glucose?

Which process do plants use to convert sunlight into glucose?

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

Answer: (B)

Plants convert sunlight into glucose through photosynthesis. In chloroplasts, light energy drives two linked steps. First, the light-dependent reactions split water, releasing oxygen and producing ATP and NADPH. Then the Calvin cycle uses that energy to fix carbon dioxide into sugars, ultimately assembling glucose. This makes the sunlight’s energy available as chemical energy stored in glucose, which the plant can use for growth and metabolism. Other processes don’t synthesize glucose from light: respiration uses glucose to release energy, fermentation converts sugars to other compounds under low oxygen, and transpiration is the loss of water vapor from leaves.

Plants convert sunlight into glucose through photosynthesis. In chloroplasts, light energy drives two linked steps. First, the light-dependent reactions split water, releasing oxygen and producing ATP and NADPH. Then the Calvin cycle uses that energy to fix carbon dioxide into sugars, ultimately assembling glucose. This makes the sunlight’s energy available as chemical energy stored in glucose, which the plant can use for growth and metabolism. Other processes don’t synthesize glucose from light: respiration uses glucose to release energy, fermentation converts sugars to other compounds under low oxygen, and transpiration is the loss of water vapor from leaves.