Biological Macromolecules and Lipids Concept
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Questions and Answers

What type of reaction is used to assemble biological macromolecules?

  • Dehydration synthesis (correct)
  • Hydrolysis
  • Oxidation
  • Reduction

    • Which type of fatty acids are solid at room temperature?

  • Polyunsaturated fatty acids
  • Saturated fatty acids (correct)
  • Monounsaturated fatty acids
  • Unsaturated fatty acids

    • What characteristic makes phospholipids amphipathic?

  • Having two hydrophobic heads
  • Being soluble in nonpolar solvents
  • Being entirely hydrophobic
  • Having a hydrophilic head and two hydrophobic tails (correct)

    • Which lipid molecule consists of three fatty acids attached to a glycerol?

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

    How are proteins typically assembled?

    <p>By dehydration synthesis reactions</p> Signup and view all the answers

    What is the primary structure of a protein defined as?

    <p>The sequence of amino acids</p> Signup and view all the answers

    In the secondary structure of a protein, what type of bonding leads to either beta pleated sheets or alpha helices?

    <p>Hydrogen bonding</p> Signup and view all the answers

    What is the main factor that influences the tertiary structure of a protein?

    <p>Interactions between R-groups</p> Signup and view all the answers

    Which statement best describes the quaternary structure of a protein?

    <p>It involves interactions between R-groups on different polypeptides</p> Signup and view all the answers

    What feature characterizes the phospholipid bilayer in cell membranes?

    <p>It creates a hydrophobic barrier that restricts diffusion across the membrane</p> Signup and view all the answers

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