Which process do plants use to convert sunlight into glucose?

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

Answer: (C)

Plants convert sunlight into glucose through photosynthesis. In chloroplasts, chlorophyll captures light energy and drives reactions that use water and carbon dioxide to build glucose, releasing oxygen in the process. The energy from light is stored in the chemical bonds of glucose, which the plant can later use for growth and metabolism. This is different from respiration, where glucose is broken down to release energy; transcription? No, not relevant here. Transpiration is the loss of water through leaves, not energy storage. Fermentation occurs without oxygen and doesn’t create glucose from light. So the process that uses sunlight to synthesize glucose is photosynthesis.