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Home Microbiology Industrially Useful Microbial Processes Comments

  • Question
  • During fermentation, pyruvic acid is converted into organic products such as


  • Options
  • A. glucose and fructose
  • B. starch and cellulose
  • C. ethyl alcohol and lactic acid
  • D. citric acid and isocitric acid

  • Correct Answer
  • ethyl alcohol and lactic acid 


  • Industrially Useful Microbial Processes problems


    Search Results


    • 1. The organism which utilizes the pentose of sulphite waste liquor for lactic acid production is

    • Options
    • A. Streptococcus lactis
    • B. Lactobacillus bulgaricus
    • C. Lactobacillus casei
    • D. Lactobacillus pentosus
    • Discuss
    • 2. The organism B. brevis can be used commercially for the production of

    • Options
    • A. gramicidin A
    • B. tyrothricin(bacitracin tyrocidin complex)
    • C. tyrocidin
    • D. all of the above
    • Discuss
    • 3. Which of the following organism is utilized for the production of D-L-alanine?

    • Options
    • A. Microbacterium ammoniaphilum
    • B. Brevibacterium flavum
    • C. Arthrobacter paraffineus
    • D. C. glutamicum
    • Discuss
    • 4. Which of the following agents involve biosensors linking with electronic circuit?

    • Options
    • A. Microorganisms
    • B. Microbially derived enzymes
    • C. Either microorganisms or microbially derived enzymes
    • D. Neither microorganisms nor microbially derived enzymes
    • Discuss
    • 5. The sugar concentration of molasses used in fermentation should be

    • Options
    • A. 10-18%
    • B. 20-30%
    • C. 4-5%
    • D. 30-38%
    • Discuss
    • 6. The submerged fermentation of vinegar utilizes special fermentor designs known as

    • Options
    • A. acetator
    • B. cavitator
    • C. packed vinegar generator
    • D. both (a) and (b)
    • Discuss
    • 7. It is mandatory that cultures and fermentation residues be sterilized before discard in case of Eremothecium ashbyii and Ashbya gossypii because they are

    • Options
    • A. plant pathogens
    • B. human pathogens
    • C. plant mutants
    • D. none of these
    • Discuss
    • 8. ?-carotene is also known as

    • Options
    • A. vitamin A
    • B. provitamin A
    • C. vitamin C
    • D. vitamin D
    • Discuss
    • 9. Which of the following is not an industrial product made by the fungus Aspergillus niger?

    • Options
    • A. Galactosidase
    • B. Citric acid
    • C. Gluconic acid
    • D. Lysine
    • Discuss
    • 10. Alcohol production from starch and raw sugar utilizes selected strains of

    • Options
    • A. Saccharomyces cerevisiae
    • B. Candida pseudotropicalis
    • C. Candida utilis
    • D. none of these
    • Discuss


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