Biopolymers Lecture 4 Quiz
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Questions and Answers

What is the most common storage polymer in bacteria mentioned in the text?

  • Polyethylene
  • Polyvinyl chloride
  • Polyhydroxyalkonates (PHAs) (correct)
  • Polypropylene
  • What type of linkages do monomers of poly-β-hydroxybutyric acid (PHB) form to create the PHB polymer?

  • Ionic bonds
  • Ester linkages (correct)
  • Peptide bonds
  • Hydrogen bonds
  • Which type of plastics are biodegradable and have many properties of traditional plastics?

  • Polyhydroxyalkonates (PHAs) (correct)
  • Polyethylene
  • Polystyrene
  • Polypropylene
  • What is the name of the most successful PHA co-polymer used as a container for personal care products?

    <p>Polyhydroxybutyrate-co-polyhydroxyvalerate (PHBV)</p> Signup and view all the answers

    What are the monomers that can form the PHBV co-polymer?

    <p>β-hydroxy-butyrate and β-hydroxyl-valerate</p> Signup and view all the answers

    Which type of plastics is set to double in production in the next 20 years according to the text?

    <p>Plastic production in general</p> Signup and view all the answers

    Which type of microorganisms are typically used in industrial microbiology to produce products or carry out chemical transformations?

    <p>Bacteria</p> Signup and view all the answers

    What are the properties of a useful industrial microbe?

    <p>Produces spores or can be easily inoculated</p> Signup and view all the answers

    What is a primary metabolite produced during microbial growth?

    <p>Ethanol</p> Signup and view all the answers

    In the context of microbial biotechnology, what are secondary metabolites?

    <p>Require a large number of enzymatic steps for production</p> Signup and view all the answers

    What is the role of a fermenter in industrial microbiology?

    <p>Supplies oxygen for microbial growth</p> Signup and view all the answers

    What is the significance of stainless steel in large-scale fermenters?

    <p>It is easy to clean and sterilize</p> Signup and view all the answers

    How do antibiotics typically function?

    <p>By inhibiting the growth of other microbes</p> Signup and view all the answers

    What is the primary source of most antibiotics in clinical use?

    <p>Bacteria</p> Signup and view all the answers

    What is the main task involved in the scale-up process in industrial microbiology?

    <p>Transferring a process from small laboratory scale to large-scale commercial equipment</p> Signup and view all the answers

    Which group of microorganisms are discovered by laboratory screening to find new antibiotics?

    <p>Actinomycetes</p> Signup and view all the answers

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