DUMET Medical DUMET Medical Solved Paper-2011

  • question_answer
    A peculiar odour that prevails in marshy areas and cow-sheds is on account of a gas produced by

    A)  mycoplasma    

    B)  archaebacteria

    C)  slime moulds   

    D)  cyanobacteria

    Correct Answer: B

    Solution :

    Archaebacteria is primitive group of bacteria. The three main groups of archaebacteria are methanogens, halophile and thermoacidophiles. Methanogens are obligate, anaerobic archaebacteria which oxidize \[C{{O}_{2}}\]during cellular respiration to produce methane as a waste product. They are found in the musk of swamps and marshes, the rumen of cattle sewage sludges and gut of termites, eg, Methanococcus jannaschii, Methanobacterium.


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