Early organisms used_as a source of hydrogen.
Correct answer: B. Hydrogen sulphide
- A. Water
- B. Hydrogen sulphide
- C. Hydrogen cyanide
- D. Hydrogen potassium permanganate
Explanation
Under anoxic conditions certain microorganisms utilized the energy of hydrogen sulfide to power their cellular process.
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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