Cell Signalling and Transduction Two key organizing principles for large multicellular organisms are simple nerve reflexes and cell specialization cell specialization and communication between cells communication between cells and simple nerve reflexes prokaryotic cell structure and cell specialization simple nerve reflexes and cell specialization cell specialization and communication between cells communication between cells and simple nerve reflexes prokaryotic cell structure and cell specialization 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? Insulin; many different cell types that use glucose for fuel Insulin; beta cells of the pancreas PDGF; the blood NGF; the nerves involved in simple reflexes Insulin; many different cell types that use glucose for fuel Insulin; beta cells of the pancreas PDGF; the blood NGF; the nerves involved in simple reflexes ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following statements about G proteins is false? 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 They must be active before the cell can make needed cAMP They become activated when bound to GDP They are involved in signal cascades ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a second messenger? Both (a) and (b) Phospholipase C Diacyl glycerol lnositol 1,4,5-triphosphate Both (a) and (b) Phospholipase C Diacyl glycerol lnositol 1,4,5-triphosphate ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction A signal cascade induced by adrenaline or thyroxine All of these results in the activation of a sequence of enzymes needed for the cell effect involves the activation of a G protein must begin with receipt of the signal molecule by a surface receptor All of these results in the activation of a sequence of enzymes needed for the cell effect involves the activation of a G protein must begin with receipt of the signal molecule by a surface receptor ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a hormone whose action requires a cell surface receptor? Growth factors Adrenaline Progesterone Nitric oxide Growth factors Adrenaline Progesterone Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
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