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 A cell is known to respond to a particular signaling molecule. Which of the following must be true of this cell? It is in the heart muscle It is incapable of signal transduction It contains the receptor for the signaling molecule It is also the site of production for the signaling molecule It is in the heart muscle It is incapable of signal transduction It contains the receptor for the signaling molecule It is also the site of production for the signaling molecule ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The hormone or ligand can be considered as none of these both (a) and (b) second messenger first messenger none of these both (a) and (b) second messenger first messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In paracrine signaling, the signaling molecules affects only None of these target cells close to the cell from which it was secreted both (a) and (b) target cells distant from its site of synthesis in cells of an endocrine organ None of these target cells close to the cell from which it was secreted both (a) and (b) target cells distant from its site of synthesis in cells of an endocrine organ ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following comes under the category of cell surface receptor? All of these 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 ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Small charged molecules, often biogenic amines function as hormones neurotransmitters none of these both (a) and (b) hormones neurotransmitters none of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
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