Body Fluid Compositions and Total Body Water Quiz
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Questions and Answers

Which group has a lower percentage of total body water?

  • Adult males
  • Newborns
  • Adult females (correct)
  • Elderly persons

    • What percentage of total body water is intracellular fluid (ICF)?

  • 40%
  • 60% (correct)
  • 80%
  • 20%

    • What is the approximate composition of interstitial fluid in the extracellular fluid (ECF)?

  • 80% interstitial fluid, 20% blood plasma (correct)
  • 80% K+, 20% NaCl
  • 80% blood plasma, 20% NaCl
  • 80% NaCl, 20% K+

    • Which electrolyte is high in extracellular fluid (ECF) but low in intracellular fluid (ICF)?

    <p>Sodium (Na+)</p> Signup and view all the answers

    What causes a membrane potential to develop across the two sides of the cell membrane?

    <p>Differences in the ionic composition of the fluids</p> Signup and view all the answers

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