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Enzyme Binding Factors quiz

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  • What is the active site of an enzyme?
    The active site is a specific region on the enzyme where the substrate binds, allowing catalysis to occur.
  • What is formed when a substrate binds to an enzyme's active site?
    The enzyme-substrate complex (ES) is formed when the substrate binds to the enzyme's active site.
  • What happens to the enzyme after catalysis is complete?
    The enzyme remains unchanged after catalysis and can catalyze additional reactions.
  • What are cofactors in the context of enzyme activity?
    Cofactors are non-protein substances required by some enzymes for catalysis to occur.
  • Give an example of a cofactor.
    Metal ions are an example of cofactors that some enzymes require for catalysis.
  • Are cofactors consumed during the enzymatic reaction?
    No, cofactors are not consumed in the reaction and remain unchanged.
  • What is a coenzyme?
    A coenzyme is an organic molecule cofactor, often derived from vitamins.
  • How do cofactors assist enzymes?
    Cofactors help enzymes perform catalysis, sometimes by enhancing substrate binding.
  • What abbreviation is commonly used for the enzyme-substrate complex?
    The enzyme-substrate complex is commonly abbreviated as ES.
  • What happens to the substrate during enzyme catalysis?
    The substrate is converted into product(s) during enzyme catalysis.
  • What is the abbreviation for the product in enzyme reactions?
    The product is commonly abbreviated as P.
  • Can all enzymes function without cofactors?
    No, some enzymes require cofactors to function, while others do not.
  • How can cofactors affect the enzyme's active site?
    Cofactors can modify the active site to better accommodate the substrate, enhancing binding.
  • What distinguishes a coenzyme from other cofactors?
    Coenzymes are organic molecules, while other cofactors like metal ions are not organic.
  • Why can an enzyme catalyze multiple reactions?
    Because the enzyme is unchanged after each reaction, it can catalyze the reaction repeatedly.