Enzyme Kinetics and Inhibition
18 Questions
2 Views

Enzyme Kinetics and Inhibition

Created by
@MasterfulGrossular

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the substrate concentration at the maximal velocity of an enzyme-catalyzed reaction?

  • The reaction's equilibrium point
  • Half the maximal velocity of the reaction (correct)
  • Zero velocity of the reaction
  • The maximal velocity of the reaction

    • Uncompetitive reversible inhibition of an enzyme results from inhibitor binding to which of the following?

  • The free enzyme only
  • The free enzyme and the enzyme-substrate complex (correct)
  • The free substrate
  • The enzyme-substrate complex only

    • In a plot of 1/V against 1/[S] for an enzyme-catalyzed reaction, what does the presence of a competitive inhibitor alter?

  • The intercept on the 1/[S] axis (correct)
  • The intercept on the 1/V axis
  • The Vmax
  • The curvature of the plot

    • What is the overall ΔG'° for the two successive reactions converting glucose 1-phosphate to fructose 6-phosphate?

    <p>-5.4 kJ/mol</p> Signup and view all the answers

    Where and under what conditions is acetyl-CoA produced from pyruvate?

    <p>The mitochondria, only under aerobic conditions</p> Signup and view all the answers

    What is true about the glycolytic pathway?

    <p>Endergonic reactions are all driven forward by being coupled to exergonic reactions</p> Signup and view all the answers

    What is the primary function of glycogen phosphorylase in the mobilization of glucose from glycogen?

    <p>Release free glucose 1-phosphate molecules</p> Signup and view all the answers

    What is a characteristic of the reaction that converts pyruvate to acetyl-CoA and CO2?

    <p>It involves the participation of thiamine</p> Signup and view all the answers

    Where are triacylglycerols acted upon during the digestion and absorption of dietary lipids?

    <p>In the small intestine by the action of lipases</p> Signup and view all the answers

    What happens to glucose 6-phosphate in the liver?

    <p>It is dephosphorylated to maintain blood glucose levels</p> Signup and view all the answers

    How many NADH molecules are produced per glucose molecule during glycolysis?

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

    What is produced from the addition of inorganic phosphate to ADP during ATP production?

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

    What is a characteristic of oligomeric proteins?

    <p>They can further associate into large fibres</p> Signup and view all the answers

    Which of the following is a type of protein found in red blood cells?

    <p>Oxygen transport protein found in red blood cells</p> Signup and view all the answers

    What is the role of enzyme catalysts in biochemical reactions?

    <p>To lower the activation energy for the conversion of substrate to product</p> Signup and view all the answers

    What is a characteristic of allosteric enzymes?

    <p>Their activity is not influenced by modulators</p> Signup and view all the answers

    What is the Vmax for an enzyme catalysed reaction?

    <p>The maximal velocity of an enzyme catalysed reaction</p> Signup and view all the answers

    What is a characteristic of a subunit in a protein?

    <p>It may have non-protein prosthetic groups</p> Signup and view all the answers

    More Like This

    Enzyme Kinetics and Inhibition Quiz
    46 questions

    Enzyme Kinetics and Inhibition Quiz

    NeatGrace avatar
    NeatGrace
    Enzyme Structure and Regulation Quiz
    50 questions

    Enzyme Structure and Regulation Quiz

    NeatGrace avatar
    NeatGrace
    Enzyme Kinetics and Inhibition Types Quiz
    21 questions

    Enzyme Kinetics and Inhibition Types Quiz

    DelightedIndianArt avatar
    DelightedIndianArt
    Enzyme Kinetics and Inhibition
    13 questions

    Enzyme Kinetics and Inhibition

    ViewableUnakite7414 avatar
    ViewableUnakite7414
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser