Cellular Electrical Signals Quiz
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Questions and Answers

How do positive charges typically move through cells?

  • Via gap junctions from cell to cell (correct)
  • Through the process of endocytosis and exocytosis
  • By active transport across the cell membrane
  • By diffusing through the cell membrane

    • What is the primary mechanism for the movement of positive charges between cells?

  • Active transport pumps
  • Gap junctions (correct)
  • Ion channels on the cell membrane
  • Facilitated diffusion through the cytoplasm

    • Which structure facilitates the movement of positive charges from one cell to another?

  • Cell membrane receptors
  • Gap junctions (correct)
  • Nuclear pores
  • Mitochondrial cristae

    • What is the role of gap junctions in the propagation of electrical signals in cells?

    <p>Allowing direct passage of positive charges between cells</p> Signup and view all the answers

    What is the initial charge state of a resting cell?

    <p>Slightly negative</p> Signup and view all the answers

    When a cell is stimulated, what kind of charge flow is created?

    <p>Flow of positive charges towards the stimulus</p> Signup and view all the answers

    What type of deflection should be observed on an EKG machine when positive charges move towards a positive electrode?

    <p>Upward deflection</p> Signup and view all the answers

    How do positive charges typically move through cells?

    <p>Via gap junctions from cell to cell</p> Signup and view all the answers

    What type of charge flow is created when a cell is stimulated?

    <p>Flow of positive charges</p> Signup and view all the answers

    What should happen on an EKG machine when positive charges move towards a positive electrode?

    <p>Upward deflection</p> Signup and view all the answers

    How do positive charges move through cells?

    <p>Via ion channels</p> Signup and view all the answers

    What is the initial state of a resting cell in terms of charge?

    <p>Slightly negative</p> Signup and view all the answers

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