Enzymes as Clinical Diagnostic Tool
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Questions and Answers

What term did Friedrich Wilhelm Kuhne coin in 1878 to describe biological catalysts?

  • Ribozymes
  • Yeast
  • Enzymes (correct)
  • Ferments
  • What is the literal meaning of the term 'enzyme'?

  • In yeast (correct)
  • Protein structure
  • Fermenting agent
  • Biological catalyst
  • Which type of molecules are ribozymes?

  • Lipids
  • Proteins
  • RNA molecules (correct)
  • Carbohydrates
  • What term is used to refer to the reactants in enzyme-catalyzed reactions?

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

    What characteristic of enzymes allows them to be highly selective in their catalytic activity?

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

    What is the main reason enzymes are considered catalysts in biochemical reactions?

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

    What is the general function of enzymes in living cells?

    <p>Control of metabolic processes</p> Signup and view all the answers

    Which type of catalysis involves the formation of a covalent bond between the enzyme and the substrate?

    <p>Covalent catalysis</p> Signup and view all the answers

    What is the significance of Km in the Michaelis-Menten equation?

    <p>It is the substrate concentration at which the reaction rate is half of Vmax.</p> Signup and view all the answers

    Which type of inhibition involves a molecule that competes with the substrate for binding to the active site of the enzyme?

    <p>Reversible competitive inhibition</p> Signup and view all the answers

    What is a possible consequence of deficiencies in enzyme catalytic activity?

    <p>Genetic defects</p> Signup and view all the answers

    Which regulatory mechanism involves a change in enzyme activity due to the binding of a small molecule at a location other than the active site?

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

    Where are enzymes synthesized?

    <p>Ribosomes attached to the rough endoplasmic reticulum</p> Signup and view all the answers

    What is the purpose of compartmentalization of enzymes within a cell?

    <p>To isolate reaction substrates or products</p> Signup and view all the answers

    What does it mean for an enzyme-catalyzed reaction to be reversible?

    <p>It can proceed in both forward and reverse directions</p> Signup and view all the answers

    How is enzyme activity regulated within a cell?

    <p>By being able to increase or decrease enzyme activity</p> Signup and view all the answers

    What is the optimum temperature for most human enzymes?

    <p>$35-40$°F</p> Signup and view all the answers

    What term describes the sensitivity of enzymes to heat and temperature?

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

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