Neural Membrane Ion Channels Quiz
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Questions and Answers

What is the concentration of negatively charged proteins in the axoplasm inside the axon when a neuron is at rest?

  • No concentration
  • Low concentration
  • Moderate concentration
  • High concentration (correct)
  • Which ion is the axonal membrane comparatively more permeable to when a neuron is at rest?

  • Calcium ions (Ca2+)
  • Chloride ions (Cl-)
  • Potassium ions (K+) (correct)
  • Sodium ions (Na+)
  • What is responsible for maintaining the ionic gradients across the resting membrane?

  • Chloride pump
  • Calcium pump
  • Potassium pump
  • Sodium-potassium pump (correct)
  • What is the concentration of sodium ions (Na+) outside the axon when a neuron is at rest?

    <p>High concentration</p> Signup and view all the answers

    How many sodium ions (Na+) are transported outwards by the sodium-potassium pump for every 2 potassium ions (K+) transported into the cell?

    <p>3</p> Signup and view all the answers

    Which of the following best describes dimensional analysis in engineering and science?

    <p>The analysis of relationships between physical quantities and their units of measurement</p> Signup and view all the answers

    What is the term used to describe physical quantities that have the same kind and the same dimension?

    <p>Commensurable physical quantities</p> Signup and view all the answers

    Which of the following best describes incommensurable physical quantities?

    <p>Physical quantities of different kinds and different dimensions</p> Signup and view all the answers

    What is the primary purpose of dimensional analysis in evaluating scientific formulae?

    <p>Conversion of units from one dimensional unit to another</p> Signup and view all the answers

    Which of the following is NOT a base quantity commonly used in dimensional analysis?

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

    Which of the following is NOT a base quantity commonly used in dimensional analysis?

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

    What is the term used to describe physical quantities that have the same kind and the same dimension?

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

    Which of the following best describes incommensurable physical quantities?

    <p>Physical quantities of different kinds and different dimensions</p> Signup and view all the answers

    What is the primary purpose of dimensional analysis in evaluating scientific formulae?

    <p>To identify base quantities and units of measurement</p> Signup and view all the answers

    Which of the following best describes dimensional analysis in engineering and science?

    <p>The analysis of relationships between different physical quantities</p> Signup and view all the answers

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