Hormones, Receptors, and Cell Signals Quiz Part 2
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Questions and Answers

What is the minimum number of signals that need to stimulate a cell for it to survive and divide, according to the information provided?

  • 4
  • 1
  • 2
  • 3 (correct)
  • If signals that promote survival and differentiation are absent, what is the likely outcome for most cells?

  • No change in cell behavior
  • Increased division
  • Reduced differentiation
  • Programmed death (correct)
  • What is the function of a receptor ligand in the cellular response to a signal?

  • Direct stimulation of cell division
  • Inhibition of programmed cell death
  • Recognition of the signal by the receptor (correct)
  • Activation of target genes or proteins
  • What is the primary function of the cytoplasmic domain of the GH receptor?

    <p>Relaying the signal to the interior of the cell</p> Signup and view all the answers

    Which type of amino acids are typically modulated by phosphorylation in signaling proteins?

    <p>Serine, Threonine, and Tyrosine</p> Signup and view all the answers

    What is the role of phosphorylated protein 1 in the signaling cascade?

    <p>Acts as a kinase and phosphorylates protein 2</p> Signup and view all the answers

    Which bonds are rich in cysteine residues for protein folding?

    <p>Disulfide bonds (S-S)</p> Signup and view all the answers

    What is the main function of the free ectodomain of the GH receptor?

    <p>May circulate as a hormone binding protein carrier protein</p> Signup and view all the answers

    Which domain of the GH receptor acts as a growth hormone binding protein?

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

    What is the primary function of the modified target proteins in the cell?

    <p>To alter the properties of the cell</p> Signup and view all the answers

    Which type of receptors do hydrophilic hormones primarily have?

    <p>Cell-surface receptors</p> Signup and view all the answers

    Which class of hormones primarily have intracellular receptors?

    <p>Lipid hormones</p> Signup and view all the answers

    In addition to serving as signaling molecules, what can metabolites also function as?

    <p>Energy sources</p> Signup and view all the answers

    What is the basic structure of a cell surface receptor?

    <p>Water-soluble amino acid end outside the cell</p> Signup and view all the answers

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