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Home Microbiology Cell Cultures and Characteristics Comments

  • Question
  • Plate counts are often reported as


  • Options
  • A. cfu
  • B. cfu/ml
  • C. Both (a) and (b)
  • D. thousands/ml

  • Correct Answer
  • cfu/ml 


  • Cell Cultures and Characteristics problems


    Search Results


    • 1. Which of the following methods is most likely to be quantitative?

    • Options
    • A. Dilution and plating
    • B. Gram staining
    • C. Wet mount
    • D. None of these
    • Discuss
    • 2. Which of the following chemotherapeutic agents may affect the growth of Campylobacter jejuni?

    • Options
    • A. Vacomycin
    • B. Polymyxin
    • C. Trimethoprim
    • D. None of these
    • Discuss
    • 3. All bacteria that inhabit the human body are

    • Options
    • A. heterotrophs
    • B. chemolithotrophs
    • C. autotrophs
    • D. phototroph
    • Discuss
    • 4. Treponema species from human oral cavity can be selected by using

    • Options
    • A. pH of the medium
    • B. incubation temperature
    • C. cell size and motility
    • D. all of these
    • Discuss
    • 5. Peptone water and nutrient broth are

    • Options
    • A. selective media
    • B. enriched media
    • C. basal media
    • D. none of these
    • Discuss
    • 6. 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

    • Options
    • A. differential medium
    • B. enriched medium
    • C. enrichment medium
    • D. selective medium
    • Discuss
    • 7. Cell size and cell number can be measured using

    • Options
    • A. hemocytometer
    • B. coulter counter
    • C. petroff-hausser counting chamber
    • D. none of these
    • Discuss
    • 8. The solidifying agent commonly used in preparation of media is/are

    • Options
    • A. agar
    • B. silica gel
    • C. both (a) and (b)
    • D. none of these
    • Discuss
    • 9. Protein portion of an enzyme when it is combined with organic molecule is termed as

    • Options
    • A. apoenzyme
    • B. co-enzyme
    • C. holoenzyme
    • D. co-factors
    • Discuss
    • 10. Many enzymes consists of a protein combined with low molecular weight organic molecule called as

    • Options
    • A. apoenzyme
    • B. co-enzyme
    • C. holoenzyme
    • D. co-factors
    • Discuss


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