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 nitric oxide cannot cross cell membranes and enter the blood Because nitric oxide breaks down quickly and thus cannot travel far Because other body tissues use a different signaling molecule None of these Because nitric oxide cannot cross cell membranes and enter the blood Because nitric oxide breaks down quickly and thus cannot travel far Because other body tissues use a different signaling molecule ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following statements about G proteins is false? They become activated when bound to GDP They must be active before the cell can make needed cAMP They bind to and are regulated by guanine nucleotides They are involved in signal cascades They become activated when bound to GDP They must be active before the cell can make needed cAMP They bind to and are regulated by guanine nucleotides They are involved in signal cascades ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction A signal cascade induced by adrenaline or thyroxine involves the activation of a G protein must begin with receipt of the signal molecule by a surface receptor All of these results in the activation of a sequence of enzymes needed for the cell effect involves the activation of a G protein must begin with receipt of the signal molecule by a surface receptor All of these results in the activation of a sequence of enzymes needed for the cell effect ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Simple nerve reflexes use signaling molecules called nitric oxides neurotransmitters proteases G proteins nitric oxides neurotransmitters proteases G proteins ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Cell signaling can be classified into three distinct types based on the distance over which the signaling molecules act None of these three distinct types based on the signaling molecules two distinct types based on the distance over which the signaling molecules act three distinct types based on the distance over which the signaling molecules act None of these three distinct types based on the signaling molecules two distinct types based on the distance over which the signaling molecules act ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In vasodilation, proper nerve signals sent to blood vessels cause 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 reduced blood pressure ANSWER DOWNLOAD EXAMIANS APP
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