Cell Signalling and Transduction The signaling molecules called steroid hormones never enter the blood of humans are hydrophilic and so cannot penetrate the plasma membrane bind to cell surface receptors to trigger chemical cascades are made in one location of the body but have their effects some distance away never enter the blood of humans are hydrophilic and so cannot penetrate the plasma membrane bind to cell surface receptors to trigger chemical cascades are made in one location of the body but have their effects some distance away ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Small charged molecules, often biogenic amines function as both (a) and (b) hormones none of these neurotransmitters both (a) and (b) hormones none of these neurotransmitters ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction SH2 domains specifically bind to GDP phosphorylated tyrosine residues Ca2+ phosphorylated serine residues GDP phosphorylated tyrosine residues Ca2+ phosphorylated serine residues ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction A signal cascade induced by adrenaline or thyroxine involves the activation of a G protein All of these must begin with receipt of the signal molecule by a surface receptor results in the activation of a sequence of enzymes needed for the cell effect involves the activation of a G protein All of these must begin with receipt of the signal molecule by a surface receptor results in the activation of a sequence of enzymes needed for the cell effect ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In paracrine signaling, the signaling molecules affects only both (a) and (b) 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 None of these both (a) and (b) 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 None of these 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 other body tissues use a different signaling molecule Because nitric oxide cannot cross cell membranes and enter the blood Because nitric oxide breaks down quickly and thus cannot travel far None of these Because other body tissues use a different signaling molecule Because nitric oxide cannot cross cell membranes and enter the blood Because nitric oxide breaks down quickly and thus cannot travel far None of these ANSWER DOWNLOAD EXAMIANS APP
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