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Introduction to Cells: Structure and Function
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Introduction to Cells: Structure and Function

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Questions and Answers

What is the role of the hydrophilic ('water loving') polar 'heads' in the plasma membrane?

  • Act as enzymes for cellular processes
  • Responsible for specialized membrane functions
  • Form the impermeable interior of the membrane
  • Oriented on the inner and outer surfaces of the membrane (correct)

    • What makes the plasma membrane relatively impermeable to most water-soluble molecules?

  • Specialized membrane functions
  • Receptors for hormones
  • Enzymes
  • Hydrophobic nonpolar 'tails' (correct)

    • Which specialized membrane function is responsible for cell-to-cell interaction?

  • Enzymes
  • Cell-to-cell interaction (joining or recognition) (correct)
  • Transport as channels or carriers
  • Receptors for hormones

    • Which type of proteins are responsible for transporting molecules across the plasma membrane?

    <p>Transport as channels or carriers</p> Signup and view all the answers

    What is the primary role of the hydrophobic ('water fearing') nonpolar 'tails' in the plasma membrane?

    <p>Form impermeable interior of the membrane</p> Signup and view all the answers

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