Cell Signalling and Transduction Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it changes the shape and thus the enzymatic activity of the proteins involved None of these allows hydrophilic signaling molecules to cross the plasma membrane makes the receptor more likely to capture the signaling, molecule changes the shape and thus the enzymatic activity of the proteins involved None of these allows hydrophilic signaling molecules to cross the plasma membrane makes the receptor more likely to capture the signaling, molecule 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 must be active before the cell can make needed cAMP They bind to and are regulated by guanine nucleotides They become activated when bound to GDP They are involved in signal cascades They must be active before the cell can make needed cAMP They bind to and are regulated by guanine nucleotides They become activated when bound to GDP 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; receptor; G proteins signaling molecule; target cell; receptors signaling molecule; target cell; G proteins kinase; receptor; proteases signaling molecule; receptor; G proteins signaling molecule; target cell; receptors signaling molecule; target cell; G proteins 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 cannot cross cell membranes and enter the blood Because other body tissues use a different signaling molecule None of these Because nitric oxide breaks down quickly and thus cannot travel far Because nitric oxide cannot cross cell membranes and enter the blood Because other body tissues use a different signaling molecule None of these Because nitric oxide breaks down quickly and thus cannot travel far ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following comes under the category of cell surface receptor? G protein linked receptors Enzyme linked receptors Ion-channel linked receptors All of these G protein linked receptors Enzyme linked receptors Ion-channel linked receptors All of these ANSWER DOWNLOAD EXAMIANS APP
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