Microbial Metabolism Chapter 5 Quiz
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Questions and Answers

What is the process of building complex organic molecules from simpler ones called?

  • Catabolism
  • Anabolism (correct)
  • Photosynthesis
  • Oxidation
  • What is the term for the breakdown of complex organic compounds into simpler ones?

  • Catabolism (correct)
  • Photosynthesis
  • Oxidation
  • Anabolism
  • Which type of inhibitors compete with the normal substrate by filling the enzyme's active site?

  • Competitive (correct)
  • Allosteric
  • Ribosomal
  • Noncompetitive
  • How do enzymes increase the speed of a chemical reaction?

    <p>Lowering the energy of activation</p> Signup and view all the answers

    Which process involves the building of complex organic molecules from simpler ones?

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

    What type of inhibitors do not compete by filling the enzyme's active site?

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

    What is the term for increasing the energy of activation?

    <p>Increasing the temperature of the reaction</p> Signup and view all the answers

    Which compounds are required to activate many apoenzymes that are inactive by themselves?

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

    What is the term for a molecule that gains one or more electrons?

    <p>Undergoes reduction</p> Signup and view all the answers

    Which process does the aerobic electron transport chain perform?

    <p>Oxidative phosphorylation</p> Signup and view all the answers

    What is the term for the addition of phosphate to a chemical compound?

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

    What should be done to activate many apoenzymes that are inactive by themselves?

    <p>Adding substrates</p> Signup and view all the answers

    What is the primary source of energy for the light-dependent reactions in photosynthesis?

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

    What is the main function of cyclic photophosphorylation in photosynthesis?

    <p>Converting electrons to ATP</p> Signup and view all the answers

    Which compound is NOT produced during photosynthesis in plants, algae, and cyanobacteria?

    <p>Hydrogen sulfide</p> Signup and view all the answers

    What is the role of ADP in the Calvin-Benson cycle?

    <p>Converted to ATP</p> Signup and view all the answers

    Which organisms use electrons from reduced inorganic compounds as a source of energy and CO2 as a source of carbon?

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

    Metabolic pathways that function in BOTH anabolism and catabolism are called ________ pathways.

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

    Which of the following pairs of pathways are involved in both anabolism and catabolism?

    <p>Pentose phosphate pathway; the Krebs cycle</p> Signup and view all the answers

    What is the final electron acceptor in fermentation?

    <p>Organic molecule</p> Signup and view all the answers

    Which statement is true about fermentation?

    <p>It produces a large amount of ATP</p> Signup and view all the answers

    What type of pathway is the pentose phosphate pathway?

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

    Which type of organisms use electrons from reduced inorganic compounds as a source of energy and CO2 as a source of carbon?

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

    In lipid biosynthesis, glycerol is derived from dihydroxyacetone phosphate formed during which process?

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

    What is the process called when an amine group added to a precursor comes from a preexisting amino acid?

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

    Where are the five-carbon sugars of nucleotides derived from?

    <p>Pentose phosphate pathway; Entner-Doudoroff pathway</p> Signup and view all the answers

    What is the source of energy for Chemoautotrophs?

    <p>Reduced inorganic compounds</p> Signup and view all the answers

    Which cycle is involved in the formation of dihydroxyacetone phosphate for lipid biosynthesis?

    <p>Citric Acid Cycle (Krebs cycle)</p> Signup and view all the answers

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