Cell Signalling and Transduction The hormone or ligand can be considered as none of these second messenger both (a) and (b) first messenger none of these second messenger both (a) and (b) first messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The signaling molecules called steroid hormones are hydrophilic and so cannot penetrate the plasma membrane are made in one location of the body but have their effects some distance away bind to cell surface receptors to trigger chemical cascades never enter the blood of humans are hydrophilic and so cannot penetrate the plasma membrane are made in one location of the body but have their effects some distance away bind to cell surface receptors to trigger chemical cascades never enter the blood of humans 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 major second messengers are DAG cAMP cGMP All of these DAG cAMP cGMP All of these 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 breaks down into nitric oxide, which increases blood flow to the heart interferes with chemical cascades that trigger contraction of heart muscle is broken down into hormones that affect the heart mimics the action of signal receptors breaks down into nitric oxide, which increases blood flow to the heart interferes with chemical cascades that trigger contraction of heart muscle is broken down into hormones that affect the heart mimics the action of signal receptors ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following statements about G proteins is false? 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 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 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS