Cell Signalling and Transduction In paracrine signaling, the signaling molecules affects only both (a) and (b) target cells close to the cell from which it was secreted target cells distant from its site of synthesis in cells of an endocrine organ None of these both (a) and (b) target cells close to the cell from which it was secreted target cells distant from its site of synthesis in cells of an endocrine organ None of these ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it makes the receptor more likely to capture the signaling, molecule changes the shape and thus the enzymatic activity of the proteins involved allows hydrophilic signaling molecules to cross the plasma membrane None of these makes the receptor more likely to capture the signaling, molecule changes the shape and thus the enzymatic activity of the proteins involved allows hydrophilic signaling molecules to cross the plasma membrane None of these ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The hormone or ligand can be considered as both (a) and (b) second messenger first messenger none of these both (a) and (b) second messenger first messenger none of these ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In the signal transduction mechanism known as protein phosphorylation All of these phosphorylated proteins act with enzymes to trigger the signal cascade receptor kinases play a key role in triggering the signal cascade the signaling molecule binds to a surface receptor All of these phosphorylated proteins act with enzymes to trigger the signal cascade receptor kinases play a key role in triggering the signal cascade the signaling molecule binds to a surface receptor ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In vasodilation, proper nerve signals sent to blood vessels cause reduced blood pressure relaxation of smooth muscle cells All of these the release of nitric oxide from endothelial cells reduced blood pressure relaxation of smooth muscle cells All of these the release of nitric oxide from endothelial cells ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction If a disease of the blood vessels caused the endothelial cells of the vessel to die, what effect would that have on the cellular activities associated with vasodilation? Smooth muscle cells could not be made to relax All of these It would be more difficult to increase blood flow and reduce blood pressure Nitric oxide would no longer be produced Smooth muscle cells could not be made to relax All of these It would be more difficult to increase blood flow and reduce blood pressure Nitric oxide would no longer be produced ANSWER DOWNLOAD EXAMIANS APP
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