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How do cells send, receive, and respond to signals from their environment, including other cells?

Topic

Cell Communication

Framing Question

How do cells send, receive, and respond to signals from their environment, including other cells?

Learning Objectives

  • Explain how a cell’s interactions with its environment can influence cell morphology, behavior, division, or survival.
  • Compare and contrast the molecular mechanisms of membrane receptor-mediated and nuclear receptor-mediated signal transduction.
  • Describe different mechanisms by which a membrane-bound receptor can affect cell physiology or behavior.
  • Choose an everyday human experience and explain how it is mediated by cellular changes due to an external signal.
  • Describe how the presence of gap junctions alters cellular responses to extracellular signals.

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