Signal Transduction Mechanisms Quiz
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Questions and Answers

What is the process of converting extracellular signals into cellular responses known as?

  • Signal transduction (correct)
  • Cytoplasmic binding
  • Nuclear distribution
  • Cell membrane synthesis
  • Which type of receptors are involved in the transduction of ligands binding to the cytoplasm?

  • Extracellular receptors
  • Nuclear receptors
  • Intracellular receptors (correct)
  • Membrane-bound receptors
  • What is the main function of hormones, neurotransmitters, and growth signals in cellular communication?

  • Signal transduction (correct)
  • Membrane distribution
  • Cell division
  • Metabolism regulation
  • What is the intended learning outcome related to the distribution of total body fluids and the percentage of water in the body?

    <p>Identify the volume of water in the body</p> Signup and view all the answers

    What does signal transduction aim to achieve in cellular responses?

    <p>Convert extracellular signals into cellular responses</p> Signup and view all the answers

    What is the process of cells sending information to each other through many key chemical signals known as?

    <p>Cell intercommunication</p> Signup and view all the answers

    What is the percentage of water in the body?

    <p>60%</p> Signup and view all the answers

    Which chemical messengers include amines, amino acids, steroids, and polypeptides?

    <p>Intracellular signaling molecules</p> Signup and view all the answers

    What do second messengers do inside cells?

    <p>Transmit signals from a receptor to a target cell</p> Signup and view all the answers

    How are signals typically mediated when protein chemical signals interact with specific cell-surface receptors?

    <p>By changing concentrations of several intracellular messengers</p> Signup and view all the answers

    What do lipophilic signal molecules do to activate plasma membrane-bound receptors?

    <p>Diffuse through the lipid bilayer and activate cytoplasmic or nuclear receptors</p> Signup and view all the answers

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