Hormone X Produces Its Effect in Its Target Cells Via

question 16

Multiple Choice

Hormone X produces its effect in its target cells via the cAMP second messenger system. Which of the following will produce the greatest effect in the cell?

• A)a molecule of hormone X applied to the extracellular fluid surrounding the cell
• B)a molecule of hormone X injected into the cytoplasm of the cell
• C)a molecule of cAMP applied to the extracellular fluid surrounding the cell
• D)a molecule of cAMP injected into the cytoplasm of the cell
• E)a molecule of activated, cAMP-dependent protein kinase injected into the cytoplasm of the cell

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