Metabolism and Biochemical Pathways Quiz
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Questions and Answers

Which enzyme synthesizes ATP during oxidative phosphorylation?

  • Phosphatase
  • Pyruvate dehydrogenase
  • Creatine kinase
  • ATP synthase (correct)
  • The main extramitochondrial source of NADH2 for ETC is:

  • Tricarboxylic acid cycle
  • Pentose phosphate pathway
  • Glycolysis (correct)
  • Pyruvate
  • Which metabolite is utilized in the TCA cycle?

  • Uric acid
  • Ammonia
  • Pyruvate
  • Acetyl-CoA (correct)
  • The reaction of substrate phosphorylation in the TCA cycle is catalyzed by:

    <p>Succinyl-CoA synthetase</p> Signup and view all the answers

    The transfer of electrons to oxygen is catalyzed by:

    <p>Cytochrome oxidase</p> Signup and view all the answers

    Which component of ETC is inhibited by cyanide?

    <p>Cytochrome oxidase</p> Signup and view all the answers

    Hormone that increases the permeability of the cell membrane to glucose:

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

    Which carbohydrates perform primarily a structural function?

    <p><strong>Glycosaminoglycans</strong></p> Signup and view all the answers

    When galactose is phosphorylated in the liver, it forms:

    <p>Galactose-1-phosphate</p> Signup and view all the answers

    In what tissues is glucokinase activity found?

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

    What is anabolism primarily responsible for?

    <p>Biosynthesis of compounds from simple molecules</p> Signup and view all the answers

    What is catabolism primarily involved in?

    <p>Hydrolysis of biopolymers in the body</p> Signup and view all the answers

    Which of the following is an example of anabolic pathways?

    <p>Biosynthesis of fatty acids</p> Signup and view all the answers

    What representatives of lipids are part of biological membranes?

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

    Which properties are characteristic of biological membranes?

    <p>Selective permeability</p> Signup and view all the answers

    What phase state is characteristic of membrane lipids?

    <p>Liquid crystal</p> Signup and view all the answers

    In facilitated diffusion, how are substances transferred through the membrane?

    <p>Along the concentration gradient</p> Signup and view all the answers

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