Lipid Metabolism Quiz
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Questions and Answers

What is the main location for fatty acid synthesis in mammals?

  • Liver (correct)
  • Muscle cells
  • Kidney cells
  • Brain cells
  • Where does the NADPH required for fatty acid synthesis come from?

  • Glycolysis
  • Krebs cycle
  • Electron transport chain
  • Pentose phosphate pathway (correct)
  • What is the main source of fatty acids and glycerol for metabolic fuels?

  • Triacylglycerols in the diet (correct)
  • Amino acids in the diet
  • Free fatty acids in cells
  • Stored glycogen in adipocytes
  • What is the primary reason for triacylglycerols being efficient energy stores?

    <p>They are stored in an anhydrous form</p> Signup and view all the answers

    What provides the growing end of a hydrocarbon chain during fatty acid synthesis?

    <p>Repetitive addition of two-carbon units</p> Signup and view all the answers

    What is the net ATP produced per glucose in the triose stage of glycolysis?

    <p>2 ATP</p> Signup and view all the answers

    Which enzyme catalyzes the formation of acetyl CoA from pyruvate?

    <p>Pyruvate dehydrogenase</p> Signup and view all the answers

    How many molecules of CO2 are released during the complete oxidation of one molecule of acetyl CoA in the citric acid cycle?

    <p>2 CO2</p> Signup and view all the answers

    What is the overall energy yield of the Krebs cycle in terms of ATP equivalents per molecule of acetyl CoA?

    <p>2 ATP equivalents</p> Signup and view all the answers

    What is the primary function of the tricarboxylic acid transporter?

    <p>Import of citrate into the mitochondria</p> Signup and view all the answers

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