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MCQs

Total Questions : 274 | Page 3 of 28 pages
Question 21. Equatorial ridge formation in the cell wall takes place in which of the following bacteria?
  1.    Streptomyces sp.
  2.    Bacillus subtilis
  3.    Streptococcus faecalis
  4.    Escherichia coli
 Discuss Question
Answer: Option C. -> Streptococcus faecalis
Answer: (c).Streptococcus faecalis
Question 22. The portion of the growth curve where a rapid growth of bacteria is observed is known as ____________
  1.    Lag phase
  2.    Logarithmic phase
  3.    Stationary phase
  4.    Decline phase
 Discuss Question
Answer: Option B. -> Logarithmic phase
Answer: (b).Logarithmic phase
Question 23. When septum formation occurs near the pole of cell then it results in the formation of daughter cell known as _________
  1.    microcell
  2.    macrocell
  3.    minicell
  4.    daughter cell
 Discuss Question
Answer: Option C. -> minicell
Answer: (c).minicell
Question 24. A bleb or fold like formation occurs in which of the following bacteria?
  1.    Rhodopseudomonas acidophila
  2.    Bacillus subtilis
  3.    E.coli
  4.    Streptococcus faecalis
 Discuss Question
Answer: Option C. -> E.coli
Answer: (c).E.coli
Question 25. Which of the following does not occur during binary fission in bacteria?
  1.    Cell elongation
  2.    Cytokinesis
  3.    DNA duplication
  4.    Spindle formation
 Discuss Question
Answer: Option D. -> Spindle formation
Answer: (d).Spindle formation
Question 26. A cluster of polar flagella is called
  1.    lophotrichous
  2.    amphitrichous
  3.    monotrichous
  4.    petritrichous
 Discuss Question
Answer: Option A. -> lophotrichous
Answer: (a).lophotrichous
Question 27. Flagella move the cell by
  1.    many flagella beating in a synchronous, whip-like motion
  2.    an individual flagellum beating in a whip-like motion
  3.    spinning like a propeller
  4.    attaching to nearby particles and contracting
 Discuss Question
Answer: Option C. -> spinning like a propeller
Answer: (c).spinning like a propeller
Question 28. The protein from which hook and filaments of flagella are composed of, is
  1.    keratin
  2.    flagellin
  3.    gelatin
  4.    casein
 Discuss Question
Answer: Option B. -> flagellin
Answer: (b).flagellin
Question 29. Which of the following may contain fimbriae?
  1.    Gram-positive bacteria
  2.    Gram-negative bacteria
  3.    Both (a) and (b)
  4.    None of these
 Discuss Question
Answer: Option B. -> Gram-negative bacteria
Answer: (b).Gram-negative bacteria
Question 30. The cooci which mostly occur in single or pairs are
  1.    Streptococci
  2.    Diplococci
  3.    Tetracocci
  4.    None of these
 Discuss Question
Answer: Option B. -> Diplococci
Answer: (b).Diplococci

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