Which process is most directly driven by light energy?

• A. Glycolysis
• B. Photosynthesis
• C. Fermentation
• D. Cellular respiration

Answer: (B)

Verified step by step guidance

1. Identify the processes listed: Glycolysis, Photosynthesis, Fermentation, and Cellular Respiration.
2. Understand that photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy stored in glucose.
3. Recognize that glycolysis, fermentation, and cellular respiration are processes that involve the breakdown of glucose to release energy, but they do not directly use light energy.
4. Recall that photosynthesis occurs in the chloroplasts of plant cells and involves two main stages: the light-dependent reactions and the Calvin cycle.
5. Conclude that photosynthesis is the process most directly driven by light energy, as it begins with the absorption of light by chlorophyll to drive the synthesis of organic molecules.