Cell Signalling and Transduction The binding of ligands to many G-proteins linked receptors leads to shortlived increase in the concentration of certain intracellular signaling molecules called second messenger decrease in the concentration of certain intracellular signaling molecules called second messenger decrease in the concentration of certain extracellular signaling molecules called first messenger increase in the concentration of certain extracellular signaling molecules called first messenger increase in the concentration of certain intracellular signaling molecules called second messenger decrease in the concentration of certain intracellular signaling molecules called second messenger decrease in the concentration of certain extracellular signaling molecules called first messenger increase in the concentration of certain extracellular signaling molecules called first messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction SH2 domains specifically bind to Ca2+ phosphorylated serine residues GDP phosphorylated tyrosine residues Ca2+ phosphorylated serine residues GDP phosphorylated tyrosine residues ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is not a type of signaling molecule? Insulin Adenylate cyclase Thyroxin Testosterone Insulin Adenylate cyclase Thyroxin Testosterone ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In the signal transduction mechanism known as protein phosphorylation All of these the signaling molecule binds to a surface receptor phosphorylated proteins act with enzymes to trigger the signal cascade receptor kinases play a key role in triggering the signal cascade All of these the signaling molecule binds to a surface receptor phosphorylated proteins act with enzymes to trigger the signal cascade receptor kinases play a key role in triggering the signal cascade ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a hormone whose action requires a cell surface receptor? Nitric oxide Progesterone Growth factors Adrenaline Nitric oxide Progesterone Growth factors Adrenaline ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it None of these changes the shape and thus the enzymatic activity of the proteins involved makes the receptor more likely to capture the signaling, molecule allows hydrophilic signaling molecules to cross the plasma membrane None of these changes the shape and thus the enzymatic activity of the proteins involved makes the receptor more likely to capture the signaling, molecule allows hydrophilic signaling molecules to cross the plasma membrane ANSWER DOWNLOAD EXAMIANS APP
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