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6 Nov 2019
(1). Match each type of cell communication with its appropriate signaling molecule. (1 point) paracine signaling contact-dependent signaling seuronal signaling endocnine signaling (a). delta (b). acetylcholine (c). testosterone (d). nitric oxide Multiple choice (2-4). (I point each) (2). In endocrine signaling, the signaling molecule (a). acts on target cells distant from the site of synthesis (b). acts on target cells that are in close proximity to the secreting cell (c). acts on the same cells that release the signaling molecule (d). acts on cells that are in direct contact with the secreting cell (3) GTPase switch proteins (a). are active when bound to GDP and inactive when bound to GTP (b) are always soluble proteins (c). synthesize GTP from GDP (d). can be monomeric or heterotrimeric (4) Nitric oxide stimulates the intracellular enzyme guanylyi cyclase by (a) activating a G protein (b).activating a receptor tyrosine kinase (c) diffusing into cells and stimulating the cyclase directly (d) activating an intracellular protein kinase (3). Place the events that follow binding of a ligand to a G-coupled receptor that activates adenylyl cyclase in the correct order: (1 point) (a), GTP is hydrolyzed to GDP (b), GDP is released from Go (c). G-GTP separates frem GÃr (d). GTP is bound tc Go Show transcribed image text
(1). Match each type of cell communication with its appropriate signaling molecule. (1 point) paracine signaling contact-dependent signaling seuronal signaling endocnine signaling (a). delta (b). acetylcholine (c). testosterone (d). nitric oxide Multiple choice (2-4). (I point each) (2). In endocrine signaling, the signaling molecule (a). acts on target cells distant from the site of synthesis (b). acts on target cells that are in close proximity to the secreting cell (c). acts on the same cells that release the signaling molecule (d). acts on cells that are in direct contact with the secreting cell (3) GTPase switch proteins (a). are active when bound to GDP and inactive when bound to GTP (b) are always soluble proteins (c). synthesize GTP from GDP (d). can be monomeric or heterotrimeric (4) Nitric oxide stimulates the intracellular enzyme guanylyi cyclase by (a) activating a G protein (b).activating a receptor tyrosine kinase (c) diffusing into cells and stimulating the cyclase directly (d) activating an intracellular protein kinase (3). Place the events that follow binding of a ligand to a G-coupled receptor that activates adenylyl cyclase in the correct order: (1 point) (a), GTP is hydrolyzed to GDP (b), GDP is released from Go (c). G-GTP separates frem GÃr (d). GTP is bound tc Go
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