Which of the Following Would Be Used by a Chemoorganotroph

Question

Which of the following would be used by a chemoorganotroph for energy?
A) C₂H₃O₂⁻
B) H₂
C) CO₂
D) H⁺

Accepted Answer

Chemoorganotrophs obtain energy by oxidizing organic molecules. Among the given options, only A (C₂H₃O₂⁻) is an organic molecule that can be used as a source of energy. B (H₂) is an inorganic molecule that is used by chemolithotrophs, C (CO₂) is used by autotrophs, and D (H⁺) is not a source of energy but is used in the electron transport chain to generate ATP.