Microbes in Industrial Products-2 MCQ

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• Streptomyces is an antibiotic obtained from actinomycetes.
  ক

  True

  খ

  False
• For which of the following purpose, antibiotics are not used?
  ক

  For killing essential bacteria

  খ

  As medicines

  গ

  As preservatives

  ঘ

  As feed supplements
• Which of the following is a common antibiotic obtained from lichens?
  ক

  Usnic acid

  খ

  Penicillin

  গ

  Cephalosporium

  ঘ

  Clavacin
• From which of the following species an antibiotic is generally not obtained?
  ক

  Lichens

  খ

  Fungi

  গ

  Actinomycetes

  ঘ

  Archaebacteria
• Which of the following may be a reason for the development of resistance to antibiotics?
  ক

  Mutation in the pathogen

  খ

  Very effective antibiotic

  গ

  Very weak pathogen

  ঘ

  Can never happen
• Which of the following is not the characteristic of a good antibiotic?
  ক

  Harmless to host

  খ

  Ability to destroy the pathogen

  গ

  Ability to destroy all the microflora in the alimentary canal of the host

  ঘ

  Effective against all strains of pathogens
• Which of the following is not a method by which antibiotic functions?
  ক

  Disruption of wall synthesis

  খ

  Inhibition of 50S ribosome

  গ

  Inhibition of DNA synthesis

  ঘ

  Permitting the growth of bacteria
• Broad-spectrum antibiotics can kill only a small number of pathogens.
  ক

  True

  খ

  False
• Who was the first person to discover an antibiotic?
  ক

  Rene Dubois

  খ

  Alexander Fleming

  গ

  Waksman

  ঘ

  Louis Pasteur
• Who coined the term antibiotics?
  ক

  Waksman

  খ

  Pasteur

  গ

  Babes

  ঘ

  Albert