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Question
During biogas production, acetic acid is transformed into the final product by the enzymes of
During biogas production, acetic acid is transformed into the final product by the enzymes of
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Solution
The correct option is D Methanobacillus
The biogas process comprises of four stages (hydrolysis, acidogenesis, acetogenesis, methanogenesis) which are catalysed by different and specialised microorganisms. Methane fermentation is the consequence of a series of metabolic interactions among various groups of microorganisms. The first group of microorganisms secrete enzymes which hydrolyze polymeric materials to monomers such as glucose and amino acids, which are subsequently converted to higher volatile fatty acids, H2 and acetic acid. In the second stage, hydrogen-producing acetogenic bacteria convert the higher volatile fatty acids e.g., propionic and butyric acids, produced, to H2, CO2, and acetic acid. Finally, the third group, methanogenic bacteria convert H2, CO2, and acetate, to CH4 and CO2.So, the correct answer is option D.
The biogas process comprises of four stages (hydrolysis, acidogenesis, acetogenesis, methanogenesis) which are catalysed by different and specialised microorganisms. Methane fermentation is the consequence of a series of metabolic interactions among various groups of microorganisms. The first group of microorganisms secrete enzymes which hydrolyze polymeric materials to monomers such as glucose and amino acids, which are subsequently converted to higher volatile fatty acids, H2 and acetic acid. In the second stage, hydrogen-producing acetogenic bacteria convert the higher volatile fatty acids e.g., propionic and butyric acids, produced, to H2, CO2, and acetic acid. Finally, the third group, methanogenic bacteria convert H2, CO2, and acetate, to CH4 and CO2.
So, the correct answer is option D.
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