CONNECTIVE TISSUE GLAND
ENDOCRINE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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specific type of membrane-receptor protein
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protein on the cytoplasmic side of a membrane
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membrane-bound enzyme
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relay protein
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Detailed explanation-1: -These G proteins are attached to the cytoplasmic face of the plasma membrane, where they serve as relay molecules, functionally coupling the receptors to enzymes or ion channels in this membrane.
Detailed explanation-2: -Heterotrimeric G-proteins mainly relay the information from G-protein-coupled receptors (GPCRs) on the plasma membrane to the inside of cells to regulate various biochemical functions. Depending on the targeted cell types, tissues and organs, these signals modulate diverse physiological functions.
Detailed explanation-3: -G protein-coupled receptors (GPCRs) are seven-transmembrane proteins that are located in the cell membrane, with their N-and C-termini located on the outer and inner surfaces, respectively. GPCRs mediate various cellular responses from the extracellular environment.