Biogas generation is a three stage anaerobic digestion of animal and other organic…

Biology · Class 12 · CBSE — Microbes in Human Welfare

Biogas generation is a three stage anaerobic digestion of animal and other organic wastes. Study the following flowchart and select the correct option for stages I, II and III.

1. In stage - I, anaerobic microorganisms bring about enzymatic breakdown of complex organic compounds into simple soluble compounds or monomers.
2. In stage - II, monomers are converted into organic acids by fermentation causing microbes.
3. In stage - III, organic acids are acted upon by methanogenic bacteria to produce biogas.
4. All of these

Answer

(D) All of these

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