Cell Membrane Structure and Function Quiz
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Questions and Answers

What is the function of the lipid bilayer in the cell membrane?

  • Provides receptors for hormones and biologically active substances
  • Facilitates cell-to-cell recognition and adhesion
  • Participates in the electrical events in nerve and muscle cells
  • Serves as a semipermeable barrier (correct)

    • Where are peripheral proteins located in the cell membrane?

  • Aiding in the regulation of cell growth and proliferation
  • Participating in cell-to-cell recognition and adhesion
  • Spanning the entire lipid bilayer
  • Bound to one or the other side of the membrane (correct)

    • What is the role of the glycocalyx in the cell membrane?

  • Provides receptors for hormones and biologically active substances
  • Participates in the electrical events in nerve and muscle cells
  • Facilitates cell-to-cell recognition and adhesion (correct)
  • Serves as a semipermeable barrier

    • What is the function of autocrine signaling?

    <p>It occurs when a cell releases a chemical into the extracellular fluid that affects its own activity.</p> Signup and view all the answers

    What is the main function of the glycocalyx in the cell membrane?

    <p>Participates in cell-to-cell recognition and adhesion.</p> Signup and view all the answers

    Where are integral proteins located in the lipid bilayer?

    <p>Spanning the entire lipid bilayer</p> Signup and view all the answers

    What is the primary function of paracrine signaling?

    <p>Acts on nearby cells</p> Signup and view all the answers

    How do peripheral proteins contribute to the cell membrane?

    <p>By binding to one or the other side of the membrane</p> Signup and view all the answers

    What is the role of ion channels in the lipid bilayer?

    <p>Acts as a semipermeable barrier</p> Signup and view all the answers

    What is the primary function of the glycocalyx in the cell membrane?

    <p>Participates in cell-to-cell recognition and adhesion</p> Signup and view all the answers

    Where are integral proteins located in the lipid bilayer?

    <p>Span the entire lipid bilayer</p> Signup and view all the answers

    What is the main function of paracrine signaling?

    <p>Acts on nearby cells</p> Signup and view all the answers

    How do peripheral proteins contribute to the cell membrane?

    <p>Are bound to one or the other side of the membrane</p> Signup and view all the answers

    What is the function of autocrine signaling?

    <p>Occurs within a cell, affecting its own activity</p> Signup and view all the answers

    What is the role of ion channels in the lipid bilayer?

    <p>Participate in electrical events in nerve and muscle cells</p> Signup and view all the answers

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