Cell Signalling and Transduction Which of the following is true about a hydrophilic signaling molecule? It might trigger a signal cascade that causes some effect in a cell It is a steroid Its receptor is located in the cytosol of the target cell Since it can enter the cell, it directly affects some specific cell process It might trigger a signal cascade that causes some effect in a cell It is a steroid Its receptor is located in the cytosol of the target cell Since it can enter the cell, it directly affects some specific cell process ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In the signal transduction mechanism known as protein phosphorylation 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 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 ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction A signal cascade induced by adrenaline or thyroxine results in the activation of a sequence of enzymes needed for the cell effect All of these must begin with receipt of the signal molecule by a surface receptor involves the activation of a G protein results in the activation of a sequence of enzymes needed for the cell effect All of these must begin with receipt of the signal molecule by a surface receptor involves the activation of a G protein ANSWER DOWNLOAD EXAMIANS APP
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 amplification Signal reception Signal transduction Signal integration Signal amplification Signal reception 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 None of these GTP and ATP by the actions of adenylate cyclase and guanylate cyclase respectively 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 None of these GTP and ATP by the actions of adenylate cyclase and guanylate cyclase respectively ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In paracrine signaling, the signaling molecules affects only target cells distant from its site of synthesis in cells of an endocrine organ both (a) and (b) target cells close to the cell from which it was secreted None of these target cells distant from its site of synthesis in cells of an endocrine organ both (a) and (b) target cells close to the cell from which it was secreted None of these ANSWER DOWNLOAD EXAMIANS APP
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