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MCQs

Total Questions : 137 | Page 14 of 14 pages
Question 131. Treponema species from human oral cavity can be selected by using
  1.    all of these
  2.    incubation temperature
  3.    pH of the medium
  4.    cell size and motility
 Discuss Question
Answer: Option D. -> cell size and motility
Question 132. When a substance is added to a solid medium which inhibits the growth of unwanted bacteria but permits the growth of wanted bacteria, it is known as
  1.    selective medium
  2.    differential medium
  3.    enrichment medium
  4.    enriched medium
 Discuss Question
Answer: Option A. -> selective medium
Question 133. Peptone water and nutrient broth are
  1.    selective media
  2.    enriched media
  3.    none of these
  4.    basal media
 Discuss Question
Answer: Option D. -> basal media
Question 134. Selective media facilitate growth of only one kind of organism. Saboraud medium is used to selectively isolate
  1.    coliform bacteria
  2.    gram positive bacteria
  3.    yeasts
  4.    acid fast organisms
 Discuss Question
Answer: Option C. -> yeasts
Question 135. Stuart's transport medium is used for transport of specimen containing
  1.    Neisseria gonorrhoeae
  2.    Shigella
  3.    Salmonella
  4.    Vibrio cholerae
 Discuss Question
Answer: Option A. -> Neisseria gonorrhoeae
Question 136. The medium which allows the growth of more than one microorganisms of interest but with morphologically distinguishable colonies is known as
  1.    enrichment medium
  2.    differential medium
  3.    none of these
  4.    selective medium
 Discuss Question
Answer: Option B. -> differential medium
Question 137. Plate counts are often reported as
  1.    thousands/ml
  2.    Both (a) and (b)
  3.    cfu
  4.    cfu/ml
 Discuss Question
Answer: Option D. -> cfu/ml

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