Cell Signalling and Transduction The signaling molecules called steroid hormones 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 are made in one location of the body but have their effects some distance away ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following comes under the category of cell surface receptor? Enzyme linked receptors G protein linked receptors Ion-channel linked receptors All of these Enzyme linked receptors G protein linked receptors Ion-channel linked receptors All of these 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 destroy the receptors for key signaling molecules They block the normal functioning of signal transduction mechanisms They prevent the production of key signaling molecules They alter the chemical structure of key signaling molecules They destroy the receptors for key signaling molecules They block the normal functioning of signal transduction mechanisms They prevent the production of key signaling molecules They alter the chemical structure of key signaling molecules 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 contains the receptor for the signaling molecule It is in the heart muscle It is also the site of production for the signaling molecule It is incapable of signal transduction It contains the receptor for the signaling molecule It is in the heart muscle It is also the site of production for the signaling molecule It is incapable of signal transduction 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 The hormone or ligand can be considered as second messenger none of these first messenger both (a) and (b) second messenger none of these first messenger both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
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