In the context of an introduction to photosynthesis, what is the primary source of energy that drives the process?

• A. Thermal energy from the surrounding environment
• B. Sunlight (photons) captured by chlorophyll
• C. Kinetic energy generated by water movement through plant tissues
• D. Chemical energy stored in glucose molecules

Answer: (B)

Verified step by step guidance

1. Understand that photosynthesis is the process by which plants convert light energy into chemical energy.
2. Identify the energy input required to drive photosynthesis, which is the energy that excites electrons in chlorophyll molecules.
3. Recognize that chlorophyll captures light energy in the form of photons from sunlight.
4. Note that thermal energy or kinetic energy from water movement does not provide the initial energy needed to start photosynthesis.
5. Conclude that the primary source of energy driving photosynthesis is sunlight (photons) captured by chlorophyll.