Cell Signalling and Transduction Which of the following comes under the category of cell surface receptor? Enzyme linked receptors Ion-channel linked receptors G protein linked receptors All of these Enzyme linked receptors Ion-channel linked receptors G protein linked receptors All of these 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
Cell Signalling and Transduction Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*? Because nitric oxide breaks down quickly and thus cannot travel far Because other body tissues use a different signaling molecule None of these Because nitric oxide cannot cross cell membranes and enter the blood Because nitric oxide breaks down quickly and thus cannot travel far Because other body tissues use a different signaling molecule None of these Because nitric oxide cannot cross cell membranes and enter the blood 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 cAMP and cGMP are derived from 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 None of these GTP and ATP by the actions of adenylate cyclase and guanylate cyclase respectively ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Two key organizing principles for large multicellular organisms are simple nerve reflexes and cell specialization communication between cells and simple nerve reflexes prokaryotic cell structure and cell specialization cell specialization and communication between cells simple nerve reflexes and cell specialization communication between cells and simple nerve reflexes prokaryotic cell structure and cell specialization cell specialization and communication between cells ANSWER DOWNLOAD EXAMIANS APP
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