Which group of organisms primarily performs photosynthesis to convert light energy into chemical energy?

• A. Archaea that rely exclusively on chemosynthesis
• B. Plants, algae, and cyanobacteria
• C. Viruses using host cell machinery to produce glucose
• D. Animals and fungi

Answer: (B)

Verified step by step guidance

1. Understand the process of photosynthesis: it is the conversion of light energy into chemical energy, typically stored as glucose.
2. Identify which organisms have the cellular structures (like chloroplasts or similar pigments) necessary for photosynthesis.
3. Recognize that plants, algae, and cyanobacteria contain chlorophyll or similar pigments that capture light energy for photosynthesis.
4. Note that archaea relying on chemosynthesis obtain energy from chemical reactions, not light, so they do not perform photosynthesis.
5. Understand that viruses lack cellular machinery for photosynthesis, and animals and fungi obtain energy by consuming organic material, not by photosynthesis.