Lipid-soluble signaling molecules, such as testosterone, cross the membrane of all cells but only affect target cells because a. intracellular receptors are only present in target cells b. only target cells possess the cytosolic enzymes that transduce the testosterone c. target cells are the only cells that can initiate the phosphorylation cascade leading to the transcription factor d. only target cells retain the appropriate DNA segments
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Step 1: Lipid-soluble signaling molecules like testosterone can cross the cell membrane of all cells. Show more…
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Lipid-soluble signaling molecules, such as aldosterone, cross the membranes of all cells but affect only target cells because (A) only target cells retain the appropriate DNA segments. (B) intracellular receptors are present only in target cells. (C) only target cells have enzymes that break down aldosterone. (D) only in target cells is aldosterone able to initiate the phosphorylation cascade that turns genes on.
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