Cell Signalling and Transduction The signaling molecules called steroid hormones are made in one location of the body but have their effects some distance away bind to cell surface receptors to trigger chemical cascades are hydrophilic and so cannot penetrate the plasma membrane never enter the blood of humans are made in one location of the body but have their effects some distance away bind to cell surface receptors to trigger chemical cascades are hydrophilic and so cannot penetrate the plasma membrane never enter the blood of humans ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following comes under the category of cell surface receptor? Enzyme linked receptors All of these G protein linked receptors Ion-channel linked receptors Enzyme linked receptors All of these G protein linked receptors Ion-channel linked receptors 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 It would be more difficult to increase blood flow and reduce blood pressure Smooth muscle cells could not be made to relax All of these Nitric oxide would no longer be produced It would be more difficult to increase blood flow and reduce blood pressure Smooth muscle cells could not be made to relax All of these ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction cAMP and cGMP are derived from ATP and GTP by the actions of guanylate cyclase and adenylate cyclase respectively ATP and GTP by the actions of adenylate cyclase and guanylate cyclase respectively None of these GTP and ATP by the actions of adenylate cyclase and guanylate cyclase respectively ATP and GTP by the actions of guanylate cyclase and adenylate cyclase respectively ATP and GTP by the actions of adenylate cyclase and guanylate cyclase respectively None of these GTP and ATP by the actions of adenylate cyclase and guanylate cyclase respectively ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following statements about G proteins is false? They must be active before the cell can make needed cAMP They become activated when bound to GDP They are involved in signal cascades They bind to and are regulated by guanine nucleotides They must be active before the cell can make needed cAMP They become activated when bound to GDP They are involved in signal cascades They bind to and are regulated by guanine nucleotides ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a second messenger? Phospholipase C lnositol 1,4,5-triphosphate Both (a) and (b) Diacyl glycerol Phospholipase C lnositol 1,4,5-triphosphate Both (a) and (b) Diacyl glycerol ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS