Cell Signalling and Transduction Which of the following is a hormone whose action requires a cell surface receptor? Growth factors Progesterone Adrenaline Nitric oxide Growth factors Progesterone Adrenaline Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The hormone or ligand can be considered as first messenger both (a) and (b) none of these second messenger first messenger both (a) and (b) none of these second messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction A cell is known to respond to a particular signaling molecule. Which of the following must be true of this cell? It is incapable of signal transduction It contains the receptor for the signaling molecule It is also the site of production for the signaling molecule It is in the heart muscle It is incapable of signal transduction It contains the receptor for the signaling molecule It is also the site of production for the signaling molecule It is in the heart muscle ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In terms of cell communication, what do bacterial pathogens such as cholera and anthrax have in common? They alter the chemical structure of key signaling molecules They block the normal functioning of signal transduction mechanisms They destroy the receptors for key signaling molecules They prevent the production of key signaling molecules They alter the chemical structure of key signaling molecules They block the normal functioning of signal transduction mechanisms They destroy the receptors for key signaling molecules They prevent the production of key signaling molecules ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is not a type of signaling molecule? Thyroxin Testosterone Insulin Adenylate cyclase Thyroxin Testosterone Insulin Adenylate cyclase ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In vasodilation, proper nerve signals sent to blood vessels cause 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 relaxation of smooth muscle cells All of these ANSWER DOWNLOAD EXAMIANS APP
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