What biological process uses light energy to convert carbon dioxide and water into glucose and oxygen?

What biological process uses light energy to convert carbon dioxide and water into glucose and oxygen?

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

Answer: (A)

Photosynthesis is the process that uses light energy to drive the transformation of inorganic carbon dioxide and water into organic sugar and oxygen. In plants and other photosynthetic organisms, chloroplasts capture light with pigments like chlorophyll. The light-dependent reactions convert light into chemical energy (ATP and NADPH), which then power the Calvin cycle to fix CO2 into glucose. The overall result is glucose as an energy-rich storage molecule and oxygen released as a byproduct. This is the correct fit because the other options describe different processes: transpiration is water loss from plant surfaces, respiration breaks down glucose to release energy, and osmosis is the diffusion of water across membranes.

Photosynthesis is the process that uses light energy to drive the transformation of inorganic carbon dioxide and water into organic sugar and oxygen. In plants and other photosynthetic organisms, chloroplasts capture light with pigments like chlorophyll. The light-dependent reactions convert light into chemical energy (ATP and NADPH), which then power the Calvin cycle to fix CO2 into glucose. The overall result is glucose as an energy-rich storage molecule and oxygen released as a byproduct.

This is the correct fit because the other options describe different processes: transpiration is water loss from plant surfaces, respiration breaks down glucose to release energy, and osmosis is the diffusion of water across membranes.