Catalysis Mechanisms in Enzymes
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Questions and Answers

What is acid-base catalysis primarily involved with?

  • Phosphorylation
  • Hydrolysis
  • Proton transfer (correct)
  • Electron transfer

    • What process is involved in acid-base catalysis?

  • Electrostatic attraction
  • Van der Waals forces
  • Hydrogen bonding
  • Proton transfer (correct)

    • Which of the following is NOT a feature of acid-base catalysis?

  • Covalent bonding
  • Redox reaction (correct)
  • Proton transfer
  • Electron pairing

    • What is the primary mechanism of acid-base catalysis?

    <p>Proton transfer</p> Signup and view all the answers

    What is the topic discussed in the lecture?

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

    Which of the following is a type of catalysis that involves proton transfer?

    <p>Acid-base catalysis</p> Signup and view all the answers

    What is the classification of the catalysis discussed in the lecture?

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

    What is the name of the lecture series?

    <p>W Lecture Series</p> Signup and view all the answers

    What is the subtitle of the lecture?

    <p>عرض الشرائع حركات B.Covalent Catalysis</p> Signup and view all the answers

    What is the abbreviation 'B.C.' likely to stand for?

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

    What is a typical electrophilic center in a substrate?

    <p>Phosphoryl group</p> Signup and view all the answers

    Which group is also an electrophilic center in a substrate?

    <p>Acyl group</p> Signup and view all the answers

    What is another type of electrophilic center in a substrate?

    <p>Glycosyl group</p> Signup and view all the answers

    Which of the following is not a typical electrophilic center in a substrate?

    <p>Alkyl group</p> Signup and view all the answers

    What are the three types of electrophilic centers mentioned?

    <p>Phosphoryl, Acyl, and Glycosyl</p> Signup and view all the answers

    What is one of the possible mechanisms of catalysis?

    <p>Approximation, bringing reactants in close proximity</p> Signup and view all the answers

    What is the role of an enzyme in catalysis?

    <p>To bring reactants close together to facilitate the reaction</p> Signup and view all the answers

    What is the result of an enzyme catalyzing a reaction?

    <p>The reaction rate increases</p> Signup and view all the answers

    What is the purpose of an enzyme's active site?

    <p>To bind with reactants</p> Signup and view all the answers

    What is the mechanism of catalysis that involves the enzyme changing the reaction environment?

    <p>Acid-base catalysis</p> Signup and view all the answers

    What is the primary function of electrostatic stabilization?

    <p>To shield negative charges</p> Signup and view all the answers

    What is the significance of electrostatic stabilization in biological systems?

    <p>It stabilizes the structure of biological molecules</p> Signup and view all the answers

    What is the outcome of electrostatic stabilization in acid-base catalysis?

    <p>Shielding of negative charges</p> Signup and view all the answers

    What is the role of electrostatic stabilization in enzyme-catalyzed reactions?

    <p>To stabilize the transition state</p> Signup and view all the answers

    What is the significance of negative charges in electrostatic stabilization?

    <p>They need to be shielded for optimal catalysis</p> Signup and view all the answers

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