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Home Microbiology Growth and Nutrition of Bacteria See What Others Are Saying!
  • Question
  • Which of the following has more tolerance for acidic pH (lower pH)?


  • Options
  • A. Yeast and moulds
  • B. Bacteria
  • C. E. coli
  • D. None of these

  • Correct Answer
  • Yeast and moulds 


  • More questions

    • 1. Which of the following catalyze liberation of orthophosphate from organic P compounds and inorganic pyrophosphate?

    • Options
    • A. Alkaline phosphates
    • B. Oxidoreductase
    • C. Protease
    • D. Hydrogenase
    • Discuss
    • 2. Which of the following theory is supported by the genomic sequence of the obligate intracellular parasite Rickettsia prowazekii?

    • Options
    • A. Parasitic bacteria have very large genomes
    • B. Parasites have a definite genomic sequence similar to viruses
    • C. Mitochondria have evolved from endosymbiotic bacteria
    • D. All bacteria evolved from viruses
    • Discuss
    • 3. Which of the antibiotic is not used as a food preservative?

    • Options
    • A. Pimaricin
    • B. Nisin
    • C. Tylosin
    • D. ?-lactam antibiotic
    • Discuss
    • 4. Which of the following microorganism produces only L(+) - lactic acid without further racemization?

    • Options
    • A. Leuconostoc mesenteroides
    • B. Lactobacillus delbrueckii
    • C. Rhizopus oryzae
    • D. Lactobacillus bulgaricus
    • Discuss
    • 5. Algae are classified into 6 groups, technically known as

    • Options
    • A. categories
    • B. divisions
    • C. genera
    • D. domains
    • Discuss
    • 6. Which of the following is a food infection?

    • Options
    • A. Salmonellois
    • B. Botulism
    • C. Staphylococcal intoxication
    • D. None of these
    • Discuss
    • 7. The class of immunoglobulin, most abundant in body is

    • Options
    • A. IgD
    • B. IgE
    • C. IgG
    • D. IgM
    • Discuss
    • 8. The medium required for glutamic acid mainly consist of

    • Options
    • A. glucose
    • B. molasses
    • C. sucrose
    • D. lactose
    • Discuss
    • 9. Which of the following nucleic acid is present in hepatitis B virus?

    • Options
    • A. dsDNA
    • B. ssRNA
    • C. ssDNA
    • D. dsRNA
    • Discuss
    • 10. Who discovered transposons (jumping genes)?

    • Options
    • A. Abelson
    • B. Harvey
    • C. McClintock
    • D. Griffith
    • Discuss


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