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Home Microbiology Enzymes Regulation Comments

  • Question
  • 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

  • Correct Answer
  • co-enzyme 


  • Enzymes Regulation problems


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    • 1. 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
    • 2. 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
    • 3. 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
    • 4. 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
    • 5. Plate counts are often reported as

    • Options
    • A. cfu
    • B. cfu/ml
    • C. Both (a) and (b)
    • D. thousands/ml
    • Discuss
    • 6. The inactive protein from of enzyme is

    • Options
    • A. apoenzyme
    • B. enzyme
    • C. haloenzyme
    • D. cofactor
    • Discuss
    • 7. Who coined the word enzyme first?

    • Options
    • A. Kuhne
    • B. Pasteur
    • C. Liebig
    • D. Buchner
    • Discuss
    • 8. Isozymes or iso enzymes are those enzyme which

    • Options
    • A. have same structural forms
    • B. have different structural forms but identical catalytic properties
    • C. catalyses oxidation reactions
    • D. none of these
    • Discuss
    • 9. The inactive organic molecular portion of enzyme is

    • Options
    • A. apoenzyme
    • B. coenzyme
    • C. holoenzyme
    • D. none of these
    • Discuss
    • 10. Intracellular enzymes

    • Options
    • A. synthesize cellular material only
    • B. synthesize cellular material and perform catabolic reaction
    • C. synthesize cellular material and perform anabolic reaction
    • D. only provide energy to the cell
    • Discuss


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