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Microbes in Enzyme and Bioactive Molecule Production MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

Quick Facts

  • Chemicals, Enzymes and other Bioactive Molecules is considered one of the most asked concept.

  • 3 Questions around this concept.

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Chemicals, Enzymes and other Bioactive Molecules
  • Microbes are also used for commercial and industrial production of certain chemicals like organic acids, alcohols and enzymes. 
  • Examples of acid producers are:
    • Aspergillus niger (a fungus) of citric acid, 
    • Acetobacter aceti (a bacterium) of acetic acid; 
    • Clostridium butylicum (a bacterium) of butyric acid;
    • Lactobacillus (a bacterium) of lactic acid.
  • Yeast (Saccharomyces cerevisiae) is used for commercial production of ethanol.
  • Microbes are also used for production of enzymes
  • Lipases are used in detergent formulations and are helpful in removing oily stains from the laundry obtained from Candida lipolytica.
    • Pectinases from Byssochlamys fulva and proteases from Aspergillus and Bacillus are used in clearing fruit juices.
  • Streptokinase produced by the bacterium Streptococcus and modified by genetic engineering is used as a ‘clot buster’ for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to heart attack.
  • Another bioactive molecule, cyclosporin A, that is used as an immunosuppressive agent in organ-transplant patients, is produced by the fungus Trichoderma polysporum.
  • Statins produced by the yeast Monascus purpureus have been commercialised as blood-cholesterol lowering agents. 
  • It acts by competitively inhibiting the enzyme responsible for synthesis of cholesterol.

 

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