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NEET Biology Biological Classification And System Of Classification / जैविक वर्गीकरण और वर्गीकरण की प्रणाली Question Bank Economic Importance of Bacteria

  • question_answer
    A free living anaerobic bacterium capable of \[{{N}_{2}}\] fixation in soil is [DPMT 1989, 93; CBSE PMT 1990; CMC Vellore 1993; RPMT 1995; MP PMT 1996]

    A)            Rhizobium                               

    B)            Azotobacter

    C)            Streptococcus                          

    D)            Clostridium

    Correct Answer: D

    Solution :

                 Clostridium is saprophytic, anaerobic \[{{N}_{2}}\] fixing bacteria and have ability to fix atmospheric \[{{N}_{2}}\] in to \[N{{H}_{3}}.\]


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