Enzyme Quiz: Test Your Knowledge! Trivia

10 Questions | Total Attempts: 93

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Enzyme Quiz: Test Your Knowledge! Trivia

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Questions and Answers
  • 1. 
    Enzymes are usually ____________ in nature.
    • A. 

      Carbohydrate

    • B. 

      Fat

    • C. 

      Iron

    • D. 

      Protein

  • 2. 
    Which of the following statements regarding enzymes is NOT true?
    • A. 

      A cell without ribosomes will not be able to produce enzymes.

    • B. 

      An enzyme can still function if the shape of its active site is altered.

    • C. 

      All enzymes are biological catalysts.

    • D. 

      Enzyme action is affected by temperature and pH.

  • 3. 
    Which of the following is NOT an example of an enzymatic reaction?
    • A. 

      Break down of proteins into polypeptides in the duodenum

    • B. 

      Curdling of milk in the stomach

    • C. 

      Digestion of cellulose by bacteria

    • D. 

      Emulsification of fats

  • 4. 
    Under which conditions would salivary amylase act on a solution of starch most rapidly?
    • A. 

      PH 2, 25°C

    • B. 

      PH 2, 70°C

    • C. 

      PH 7, 25°C

    • D. 

      PH 7, 70°C

  • 5. 
    What are the products formed from the breakdown of oil by lipase?
    • A. 

      Amino acids

    • B. 

      Fatty acids and glycerol

    • C. 

      Glucose

    • D. 

      Lipids

  • 6. 
    What is the enzyme found in potato that is able to react with hydrogen peroxide?
    • A. 

      Amylase

    • B. 

      Catalase

    • C. 

      Lipase

    • D. 

      Protease

  • 7. 
    Which of the following are characteristics of enzymes? 1.       Enzymes are highly specific. 2.       Enzymes remain unchanged at the end of their reactions. 3.       Enzymes are required in large amounts.
    • A. 

      1 and 2 only

    • B. 

      1 and 3 only

    • C. 

      2 and 3 only

    • D. 

      All of the above.

  • 8. 
    Which of the following enzymes works well when it is mixed with distilled water?
    • A. 

      Salivary amylase

    • B. 

      Pancreatic amylase

    • C. 

      Pepsin

    • D. 

      Lactase

  • 9. 
    Which of the following statements about enzymes is NOT correct?
    • A. 

      Enzymes allow chemical reactions to take a shorter time to complete.

    • B. 

      Enzymes are temperature sensitive.

    • C. 

      Enzymes break down complex substances only.

    • D. 

      Enzymes catalyse reversible reactions.

  • 10. 
    According to the 'lock and key' hypothesis, what is represented by the lock and key?
    • A. 

      The lock represents the enzyme while the key represents the substrate.

    • B. 

      The lock represents the active site while the key represents the enzyme.

    • C. 

      The lock represents the product while the key represents the substrate.

    • D. 

      The lock represents the enzyme while the key represents the product.

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