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 contains the receptor for the signaling molecule It is incapable of signal transduction It is also the site of production for the signaling molecule It is in the heart muscle It contains the receptor for the signaling molecule It is incapable of signal transduction 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 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 extracellular signaling molecules called first messenger decrease in the concentration of certain extracellular signaling molecules called first messenger increase in the concentration of certain intracellular signaling molecules called second messenger decrease 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 increase in the concentration of certain intracellular signaling molecules called second messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is true about a hydrophilic signaling molecule? It is a steroid Since it can enter the cell, it directly affects some specific cell process Its receptor is located in the cytosol of the target cell It might trigger a signal cascade that causes some effect in a cell It is a steroid Since it can enter the cell, it directly affects some specific cell process Its receptor is located in the cytosol of the target cell It might trigger a signal cascade that causes some effect in a cell ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The hormone or ligand can be considered as both (a) and (b) second messenger none of these first messenger both (a) and (b) second messenger none of these first messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a hormone whose action requires a cell surface receptor? Nitric oxide Progesterone Adrenaline Growth factors Nitric oxide Progesterone Adrenaline Growth factors ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Nitroglycerin has long been administered to human patients suffering from chronic chest pain (angina). This medication works because it mimics the action of signal receptors is broken down into hormones that affect the heart breaks down into nitric oxide, which increases blood flow to the heart interferes with chemical cascades that trigger contraction of heart muscle mimics the action of signal receptors is broken down into hormones that affect the heart breaks down into nitric oxide, which increases blood flow to the heart interferes with chemical cascades that trigger contraction of heart muscle ANSWER DOWNLOAD EXAMIANS APP
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