Chemosynthetic bacteria obtain energy from:

Biology Photosynthesis in Higher Plants NCERT Examplar Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 21, 2026

Sun

Infrared rays

Organic substances

Inorganic chemicals

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The correct answer is:

Chemosynthetic bacteria were the first organism on earth; synthesis their own food by obtaining energy from chemicals like , etc. Photosynthetic bacteria have taken their origin from chemosynthetic bacteria.
Sun, infrared rays and organic substances are not used as the sources of energy for chemosynthetic bacteria.

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