Question

Photosynthetic autotrophs receive energy from

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

Answer 1

The correct option is D Light

A) A type of chemosynthetic autotrophs called chemolithotrophs like methanogenic archaebacteria make food using energy from inorganic chemical reactions, often combining hydrogen sulfide or methane with oxygen.

B) Chemoorganotrophs a type of chemosynthetic autotrophs, use organic molecules as a source of energy.

C) Photosynthetic autotrophs do not use heat energy from the sun. Instead, they use light energy.

D) Photosynthetic autotrophs like green plants, certain algae, and photosynthetic bacteria, use light for energy.

So the correct answer is 'Light'.