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MCQs

Total Questions : 274 | Page 2 of 28 pages
Question 11. Mesophiles are group of bacteria that grow within the temperature range of?
  1.    0-20 degree Celsius
  2.    25-40 degree Celsius
  3.    45-60 degree Celsius
  4.    more than 60 degree Celsius
 Discuss Question
Answer: Option B. -> 25-40 degree Celsius
Answer: (b).25-40 degree Celsius
Question 12. Which of the following factors are responsible for the stability of thermophiles at high temperatures?
  1.    increased leakage of cell components
  2.    presence of large no. of polar amino acids and alpha-helix protein
  3.    thermal stability of ribosomes
  4.    presence of Inositol diphosphate and thermal stability of ribosomes
 Discuss Question
Answer: Option D. -> presence of Inositol diphosphate and thermal stability of ribosomes
Answer: (d).presence of Inositol diphosphate and thermal stability of ribosomes
Question 13. The bacterium Staphylococcus aureus is which type of bacteria?
  1.    Psychrophile
  2.    Mesophile
  3.    Thermophile
  4.    Mesophile and psychrophile
 Discuss Question
Answer: Option B. -> Mesophile
Answer: (b).Mesophile
Question 14. The Reactive Oxygen Species(ROS) poduced by some bacteria are degraded by which of the following enzymes?
  1.    Peroxidase
  2.    Lyase
  3.    Catalase
  4.    Superoxide dismutase, Catalase and Peroxidase
 Discuss Question
Answer: Option D. -> Superoxide dismutase, Catalase and Peroxidase
Answer: (d).Superoxide dismutase, Catalase and Peroxidase
Question 15. Microaerophilic bacteria require low levels of oxygen for growth.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 16. Rhodopseudomonas acidophila reproduces by which of the following methods?
  1.    Binary fission
  2.    Budding
  3.    Fragmentation
  4.    Sporulation
 Discuss Question
Answer: Option B. -> Budding
Answer: (b).Budding
Question 17. Transverse binary fission requires the formation of a crosswall.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 18. Which of the following bacterial species divides by fragmentation?
  1.    Bacillus subtilis
  2.    Streptococcus faecalis
  3.    Rhodopseudomonas acidophila
  4.    Nocardia sp.
 Discuss Question
Answer: Option D. -> Nocardia sp.
Answer: (d).Nocardia sp.
Question 19. Streptomyces sp. show the budding mode of reproduction.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 20. The synthesis of new membrane material during reproduction in Gram-positive cells is performed by which of the following organelles?
  1.    Nucleus
  2.    Mesosome
  3.    Endoplasmic Reticulum
  4.    Cytoplasmic membrane
 Discuss Question
Answer: Option B. -> Mesosome
Answer: (b).Mesosome

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