Cell Signalling and Transduction The binding of ligands to many G-proteins linked receptors leads to shortlived decrease in the concentration of certain intracellular signaling molecules called second messenger increase in the concentration of certain intracellular signaling molecules called second messenger increase in the concentration of certain extracellular signaling molecules called first messenger decrease in the concentration of certain extracellular signaling molecules called first messenger decrease in the concentration of certain intracellular signaling molecules called second messenger increase in the concentration of certain intracellular signaling molecules called second messenger increase in the concentration of certain extracellular signaling molecules called first messenger decrease in the concentration of certain extracellular signaling molecules called first messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In vasodilation, proper nerve signals sent to blood vessels cause relaxation of smooth muscle cells the release of nitric oxide from endothelial cells reduced blood pressure All of these relaxation of smooth muscle cells the release of nitric oxide from endothelial cells reduced blood pressure All of these ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In the signal transduction mechanism known as protein phosphorylation All of these receptor kinases play a key role in triggering the signal cascade phosphorylated proteins act with enzymes to trigger the signal cascade the signaling molecule binds to a surface receptor All of these receptor kinases play a key role in triggering the signal cascade phosphorylated proteins act with enzymes to trigger the signal cascade the signaling molecule binds to a surface receptor ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a hormone whose action requires a cell surface receptor? Adrenaline Growth factors Nitric oxide Progesterone Adrenaline Growth factors Nitric oxide Progesterone ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The major second messengers are All of these DAG cAMP cGMP All of these DAG cAMP cGMP ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Simple nerve reflexes use signaling molecules called G proteins neurotransmitters proteases nitric oxides G proteins neurotransmitters proteases nitric oxides ANSWER DOWNLOAD EXAMIANS APP
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