The sun is the source of __________ in the process of photosynthesis.

• A. light energy
• B. glucose
• C. carbon dioxide
• D. chlorophyll

Answer: (A)

Verified step by step guidance

1. Step 1: Begin by understanding the process of photosynthesis. Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy stored in glucose molecules.
2. Step 2: Identify the key components required for photosynthesis. These include light energy, carbon dioxide (CO₂), water (H₂O), and chlorophyll (the pigment that absorbs light).
3. Step 3: Recognize the role of the sun in photosynthesis. The sun provides light energy, which is absorbed by chlorophyll in the chloroplasts of plant cells.
4. Step 4: Clarify the function of light energy. Light energy drives the reactions in the light-dependent stage of photosynthesis, where water is split into oxygen and hydrogen ions, and ATP is generated.
5. Step 5: Match the correct answer to the blank in the question. Based on the explanation, the sun is the source of light energy in the process of photosynthesis.