Beckers World of the Cell Study Set 1

Biology

Quiz 23 :

Signal Transduction Mechanisms: Iimessengers and Receptors

Quiz 23 :

Signal Transduction Mechanisms: Iimessengers and Receptors

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Previous experiments have not conclusively demonstrated XFF is the alien epinephrine,so you decide to investigate other XFF properties using radioactive XFF.Which of the following XFF behaviors confirm that XFF is similar to estrogen?
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B

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Each of the following activates a receptor tyrosine kinase except
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C

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The interleukin-2 (IL-2)growth factor interacts with receptors on
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B

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Reception of a signal released by the same cell is which of the following types of signaling?
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Each of the following ligands binds to an intracellular receptor except
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You add a large amount of XFF to cultured alien liver cells.Which of the following would confirm that XFF is the alien equivalent of human epinephrine?
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Each of the following is correct about cholera and its effect on G-protein-adenylyl cyclase activity except
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Each of the following is a G-protein coupled receptor (GPCR)or type of GPCR except
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Which of the following would be correctly described as a juxtacrine signaling?
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To test whether the XFF signal system is similar to that of epinephrine,you microinject a nonhydrolyzable analogue of GTP into an XFF-responsive cell.If the XFF mechanism is similar to that of epinephrine,you would expect the cellular response to be
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Which of the following is a lipophilic primary message that crosses the plasma membrane and interacts with a cytosolic receptor?
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Desensitization of a cell to a ligand may involve each of the following except
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Compounds that inhibit receptors by preventing the natural messenger from binding are known as
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The concentration of the primary messenger (ligand)in the bloodstream changes from <10−9 M when the signal is not being secreted to 10−7 M when it is being secreted.Which of the following Kds for binding that ligand would be optimal for a receptor involved in a responsive signaling system?
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In a hormone-stimulated signaling system,the concentration of hormone exposed to the receptor is
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Each of the following is a step in the epinephrine-cAMP pathway in which the signal is amplified except
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Inhibitors of which of the following would interfere with nitric oxide stimulation of cardiac artery dilation through relaxation of smooth muscle cells?
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Each of the following is an intracellular messenger except
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Which of the following would best be used to demonstrate XFF is most like EGF?
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You are seeking a new anti-inflammatory drug to inhibit local responses to stress and injury.Which of the following activities would you look for in a potential anti-inflammatory agent?
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