Membrane Structure and Function Quiz
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Questions and Answers

Which part of the cell serves as a barrier or boundary?

  • Mitochondria
  • Cell nucleus
  • Endoplasmic reticulum
  • Plasma membrane (correct)
  • What is the function of the plasma membrane?

  • To store genetic information
  • To control traffic into and out of the cell (correct)
  • To produce energy for the cell
  • To synthesize proteins
  • What is selective permeability?

  • The ability of the plasma membrane to allow only certain substances to cross (correct)
  • The ability of the plasma membrane to allow all substances to cross
  • The ability of the plasma membrane to prevent all substances from crossing
  • The ability of the plasma membrane to control the cell's shape
  • Why is the ability of the cell to discriminate in its chemical exchange with the environment important?

    <p>It is fundamental to life</p> Signup and view all the answers

    What makes selectivity possible in cell membranes?

    <p>The plasma membrane and its component molecules</p> Signup and view all the answers

    True or false: The plasma membrane surrounds the contents of a cell and serves as a barrier or boundary?

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

    True or false: The plasma membrane exhibits selective permeability?

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

    True or false: The ability of the cell to discriminate in its chemical exchange with its environment is fundamental to life?

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

    True or false: The plasma membrane and its component molecules make selectivity possible?

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

    True or false: Cell membranes control the passage of substances?

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

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