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 In paracrine signaling, the signaling molecules affects only both (a) and (b) None of these target cells close to the cell from which it was secreted target cells distant from its site of synthesis in cells of an endocrine organ both (a) and (b) None of these target cells close to the cell from which it was secreted target cells distant from its site of synthesis in cells of an endocrine organ ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following statements about G proteins is false? They must be active before the cell can make needed cAMP They are involved in signal cascades They bind to and are regulated by guanine nucleotides They become activated when bound to GDP They must be active before the cell can make needed cAMP They are involved in signal cascades They bind to and are regulated by guanine nucleotides They become activated when bound to GDP ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The enzyme that catalyzes the splitting of PIP2 into two molecules of inositol triphosphate (IP3) and diacylglycerol in cell signaling, is lipokinase phospholipase C phosphodiesterase C phosphokinase C lipokinase phospholipase C phosphodiesterase C phosphokinase C ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction A signal cascade induced by adrenaline or thyroxine must begin with receipt of the signal molecule by a surface receptor involves the activation of a G protein All of these results in the activation of a sequence of enzymes needed for the cell effect must begin with receipt of the signal molecule by a surface receptor involves the activation of a G protein All of these results in the activation of a sequence of enzymes needed for the cell effect ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following comes under the category of cell surface receptor? Ion-channel linked receptors All of these Enzyme linked receptors G protein linked receptors Ion-channel linked receptors All of these Enzyme linked receptors G protein linked receptors ANSWER DOWNLOAD EXAMIANS APP
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