Question:medium

Lithotroph is an organism that uses:

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Lithotroph = Inorganic electron donor ($\text{H}_2\text{S}, \text{NH}_3, \text{Fe}^{2+}$).
Organotroph = Organic electron donor (Glucose, Amino acids).
Phototroph = Light energy source.
Chemotroph = Chemical energy source.
Updated On: Jul 28, 2026
  • Organic nutrient molecules
  • Light energy
  • Lithium molecules
  • Inorganic molecules
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The Correct Option is D

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