Biochemistry Regulation Flashcard Quiz
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Questions and Answers

What is the cofactor that serves to hold a carboxylate group for attack by the substrate in a carboxylase enzyme?

  • Niacin
  • Biotin (correct)
  • Thiamine
  • Riboflavin
  • What does the pentose phosphate pathway produce that can be used in biosynthesis or detoxification?

  • NADH
  • ATP
  • NADPH (correct)
  • FADH2
  • Which mechanism explains how ATP synthase catalyzes the synthesis of ATP?

  • Competitive inhibition
  • Allosteric regulation
  • Covalent modification
  • Binding change (correct)
  • What is the committed step of cholesterol synthesis in humans catalyzed by?

    <p>HMG-CoA reductase</p> Signup and view all the answers

    What type of regulation allows one pathway to be turned on when its metabolically opposing pathway is simultaneously turned off?

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

    What is the cofactor that serves to hold a carboxylate group for attack by the substrate in a carboxylase enzyme?

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

    What does the pentose phosphate pathway produce that can be used in biosynthesis or detoxification?

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

    Which mechanism explains how ATP synthase catalyzes the synthesis of ATP?

    <p>Binding change mechanism</p> Signup and view all the answers

    What type of regulation allows one pathway to be turned on when its metabolically opposing pathway is simultaneously turned off?

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

    What is the committed step of cholesterol synthesis in humans catalyzed by?

    <p>HMG-CoA reductase</p> Signup and view all the answers

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