Cell Signalling and Transduction Which of the following is a second messenger? Both (a) and (b) lnositol 1,4,5-triphosphate Diacyl glycerol Phospholipase C Both (a) and (b) lnositol 1,4,5-triphosphate Diacyl glycerol Phospholipase C ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following statements about G proteins is false? 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 They must be active before the cell can make needed cAMP ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following comes under the category of cell surface receptor? Ion-channel linked receptors G protein linked receptors Enzyme linked receptors All of these Ion-channel linked receptors G protein linked receptors Enzyme linked receptors All of these ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction When a __________ reaches its __________ , there is a specific means of receiving it and acting on the message. This task is the responsibility of specialized proteins called __________ . kinase; receptor; proteases signaling molecule; target cell; G proteins signaling molecule; receptor; G proteins signaling molecule; target cell; receptors kinase; receptor; proteases signaling molecule; target cell; G proteins signaling molecule; receptor; G proteins signaling molecule; target cell; receptors ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a hormone whose action requires a cell surface receptor? Growth factors Progesterone Nitric oxide Adrenaline Growth factors Progesterone Nitric oxide Adrenaline ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In paracrine signaling, the signaling molecules affects only None of these target cells distant from its site of synthesis in cells of an endocrine organ target cells close to the cell from which it was secreted both (a) and (b) None of these target cells distant from its site of synthesis in cells of an endocrine organ target cells close to the cell from which it was secreted both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
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