Cell Signalling and Transduction Which of the following is a second messenger? lnositol 1,4,5-triphosphate Phospholipase C Both (a) and (b) Diacyl glycerol lnositol 1,4,5-triphosphate Phospholipase C Both (a) and (b) Diacyl glycerol ANSWER DOWNLOAD EXAMIANS APP
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*? Because nitric oxide breaks down quickly and thus cannot travel far Because nitric oxide cannot cross cell membranes and enter the blood Because other body tissues use a different signaling molecule None of these Because nitric oxide breaks down quickly and thus cannot travel far Because nitric oxide cannot cross cell membranes and enter the blood Because other body tissues use a different signaling molecule None of these 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 also the site of production for the signaling molecule It is incapable of signal transduction It is in the heart muscle It contains the receptor for the signaling molecule It is also the site of production for the signaling molecule It is incapable of signal transduction It is in the heart muscle It contains the receptor for the signaling molecule 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? Nitric oxide would no longer be produced All of these Smooth muscle cells could not be made to relax It would be more difficult to increase blood flow and reduce blood pressure Nitric oxide would no longer be produced All of these Smooth muscle cells could not be made to relax It would be more difficult to increase blood flow and reduce blood pressure 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 breaks down into nitric oxide, which increases blood flow to the heart is broken down into hormones that affect the heart interferes with chemical cascades that trigger contraction of heart muscle mimics the action of signal receptors breaks down into nitric oxide, which increases blood flow to the heart is broken down into hormones that affect the heart interferes with chemical cascades that trigger contraction of heart muscle ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In paracrine signaling, the signaling molecules affects only None of these both (a) and (b) target cells distant from its site of synthesis in cells of an endocrine organ target cells close to the cell from which it was secreted None of these both (a) and (b) target cells distant from its site of synthesis in cells of an endocrine organ target cells close to the cell from which it was secreted ANSWER DOWNLOAD EXAMIANS APP
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