You Recently Identified a Molecule That You Believe Is a Primary

question 16

Multiple Choice

You recently identified a molecule that you believe is a primary messenger for a signal transduction mechanism.All you know about this ligand is that it is hydrophilic.Where would you expect to find initial interaction of the molecule with its receptor?

• A)on the outer surface of the plasma membrane
• B)within the cytoplasm of the cell
• C)within the nucleus of the cell
• D)on the cytoplasmic side of the plasma membrane
• E)in endosome vesicles

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