Question

Photosynthetic autotrophs get their energy requirement from:

• A. Heat
• B. Light
• C. Inorganic chemicals
• D. Organic chemicals.

Answer 1

The correct option is B Light

• Autotrophic nutrition is a mode of nutrition in which organism prepares their food by their own with the help of organic materials available in nature.
• Photosynthetic autotrophism is a mode of nutrition in which an organism prepares their food with the help of organic materials in the presence of sunlight.
• Plants are examples of photosynthetic autotrophs. Photosynthetic autotrophs get their requirement from light.
• The process by which photosyntheitic autotrophs prepare their food is known as photosynthesis. In the presence of light, with the help of carbon dioxide and water, glucose is formed.
• Hence, the correct answer is option B.