Which statement accurately describes all primary producers in the context of photosynthesis?

• A. They consume other organisms to obtain energy.
• B. They rely solely on chemosynthesis for energy production.
• C. They produce energy by breaking down organic matter.
• D. They convert light energy into chemical energy through photosynthesis.

Answer: (D)

Verified step by step guidance

1. Understand the role of primary producers: Primary producers are organisms that can produce their own food using light, water, carbon dioxide, or other chemicals. They are the base of the food chain.
2. Identify the process of photosynthesis: Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy in the form of glucose.
3. Recognize the key components of photosynthesis: The process requires light energy, carbon dioxide (CO2), and water (H2O), and it produces glucose (C6H12O6) and oxygen (O2) as byproducts.
4. Differentiate between photosynthesis and other energy production methods: Unlike chemosynthesis, which uses chemical energy, photosynthesis specifically uses light energy to produce food.
5. Conclude that primary producers convert light energy into chemical energy: This is the defining characteristic of photosynthetic organisms, making them essential for energy flow in ecosystems.