Cell Signalling and Transduction In terms of cell communication, what do bacterial pathogens such as cholera and anthrax have in common? They alter the chemical structure of key signaling molecules They block the normal functioning of signal transduction mechanisms They destroy the receptors for key signaling molecules They prevent the production of key signaling molecules They alter the chemical structure of key signaling molecules They block the normal functioning of signal transduction mechanisms They destroy the receptors for key signaling molecules They prevent the production of key signaling molecules ANSWER DOWNLOAD EXAMIANS APP
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 are hydrophilic and so cannot penetrate the plasma membrane never enter the blood of humans bind to cell surface receptors to trigger chemical cascades are made in one location of the body but have their effects some distance away are hydrophilic and so cannot penetrate the plasma membrane never enter the blood of humans bind to cell surface receptors to trigger chemical cascades ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction SH2 domains specifically bind to phosphorylated serine residues Ca2+ phosphorylated tyrosine residues GDP phosphorylated serine residues Ca2+ phosphorylated tyrosine residues GDP ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Small charged molecules, often biogenic amines function as none of these neurotransmitters hormones both (a) and (b) none of these neurotransmitters hormones both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction What is the name of the protein signaling molecule that alters glucose uptake, and where would its receptors be located? PDGF; the blood Insulin; beta cells of the pancreas Insulin; many different cell types that use glucose for fuel NGF; the nerves involved in simple reflexes PDGF; the blood Insulin; beta cells of the pancreas Insulin; many different cell types that use glucose for fuel NGF; the nerves involved in simple reflexes ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction cAMP and cGMP are derived from None of these GTP and ATP by the actions of adenylate cyclase and guanylate cyclase respectively ATP and GTP by the actions of adenylate cyclase and guanylate cyclase respectively ATP and GTP by the actions of guanylate cyclase and adenylate 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 adenylate cyclase and guanylate cyclase respectively ATP and GTP by the actions of guanylate cyclase and adenylate cyclase respectively ANSWER DOWNLOAD EXAMIANS APP
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