Which of the Following Statements Best Explains Why Testosterone, a Lipid-Soluble

question 52

Multiple Choice

Which of the following statements best explains why testosterone, a lipid-soluble signaling molecule that crosses the membranes of all cells, affects only target cells?

• A) Only target cells retain the appropriate genes regulated by testosterone.
• B) Only target cells contain the intracellular receptors for testosterone.
• C) Only target cells possess the cytosolic enzymes that transduce the signal from testosterone to adenylyl cyclase.
• D) Testosterone initiates a phosphorylation cascade only in target cells.

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