Cell Signalling and Transduction Which of the following processes involve the combining of a message from one signaling molecule with that of another to either enhance or inhibit a cellular effect? Signal integration Signal reception Signal amplification Signal transduction Signal integration Signal reception Signal amplification Signal transduction ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction cAMP and cGMP are derived from ATP and GTP by the actions of adenylate cyclase and guanylate cyclase respectively ATP and GTP by the actions of guanylate cyclase and adenylate cyclase respectively GTP and ATP by the actions of adenylate cyclase and guanylate cyclase respectively None of these ATP and GTP by the actions of adenylate cyclase and guanylate cyclase respectively ATP and GTP by the actions of guanylate cyclase and adenylate cyclase respectively GTP and ATP by the actions of adenylate cyclase and guanylate cyclase respectively None of these ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is true about a hydrophilic signaling molecule? Its receptor is located in the cytosol of the target cell It is a steroid It might trigger a signal cascade that causes some effect in a cell Since it can enter the cell, it directly affects some specific cell process Its receptor is located in the cytosol of the target cell It is a steroid It might trigger a signal cascade that causes some effect in a cell Since it can enter the cell, it directly affects some specific cell process ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a second messenger? Both (a) and (b) Diacyl glycerol lnositol 1,4,5-triphosphate Phospholipase C Both (a) and (b) Diacyl glycerol lnositol 1,4,5-triphosphate Phospholipase C ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In the signal transduction mechanism known as protein phosphorylation the signaling molecule binds to a surface receptor phosphorylated proteins act with enzymes to trigger the signal cascade receptor kinases play a key role in triggering the signal cascade All of these the signaling molecule binds to a surface receptor phosphorylated proteins act with enzymes to trigger the signal cascade receptor kinases play a key role in triggering the signal cascade All of these ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*? None of these Because other body tissues use a different signaling molecule Because nitric oxide breaks down quickly and thus cannot travel far Because nitric oxide cannot cross cell membranes and enter the blood None of these Because other body tissues use a different signaling molecule Because nitric oxide breaks down quickly and thus cannot travel far Because nitric oxide cannot cross cell membranes and enter the blood ANSWER DOWNLOAD EXAMIANS APP
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