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 (B)</p> Signup and view all the answers

What does signal transduction aim to achieve in cellular responses?

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

What is the percentage of water in the body?

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

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

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

What do second messengers do inside cells?

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

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