5-L1
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Questions and Answers

What is the major dietary and storage lipid in the body?

  • Phospholipids
  • Cholesterol esters
  • Eicosanoids
  • Triacylglycerols (correct)
  • Which hormone promotes the storage of triacylglycerols in adipose tissue?

  • Adrenaline
  • Cortisol
  • Insulin (correct)
  • Glucagon
  • What is the main role of triacylglycerols in the body?

  • Fuel storage (correct)
  • Local mediators
  • Component of membranes
  • Insulation
  • Which of the following hormones reduces the storage of triacylglycerols?

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

    Apart from cholesterol, what other lipid is involved in steroid hormone synthesis?

    <p>Cholesterol esters</p> Signup and view all the answers

    Which enzyme is responsible for hydrolyzing triacylglycerols in the small intestine?

    <p>Pancreatic lipase</p> Signup and view all the answers

    What type of fatty acids are the most common in the body?

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

    Which hormones activate hormone-sensitive lipase for hydrolyzing triacylglycerols in stress situations?

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

    Why can't red blood cells oxidize fatty acids?

    <p>Absence of mitochondria</p> Signup and view all the answers

    Which vitamin is involved in the complex molecule Coenzyme A?

    <p>Vitamin B5</p> Signup and view all the answers

    What inhibits the transport of activated fatty acids into mitochondria?

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

    What is the fate of most of the dietary carbohydrate and protein consumed in excess?

    <p>Esterification to triacylglycerols for storage in adipose tissue</p> Signup and view all the answers

    What inhibits the enzyme responsible for synthesizing fatty acids from acetyl-CoA?

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

    "Beta-oxidation" refers to the oxidation of:

    <p>$\text{Fatty acids}$</p> Signup and view all the answers

    "Esterification" refers to the process of converting:

    <p>$\text{Excessive carbohydrate and protein}$ to triacylglycerols for storage</p> Signup and view all the answers

    Why does fatty acid oxidation not occur in cells of the central nervous system?

    <p>Fatty acids do not readily cross the Blood-Brain Barrier</p> Signup and view all the answers

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