[Campbell Biology P.270] Based on Figure 11.9, which of the following statements accurately ... | Practice Question

Based on Figure 11.9, which of the following statements accurately describes a step in steroid hormone aldosterone signaling?

  • 1: Aldosterone binds to a receptor protein on the plasma membrane.
  • 2: The hormone-receptor complex enters the nucleus and directly synthesizes new proteins.
  • 3: The mRNA is translated into a specific protein in the cytoplasm.
  • 4: The bound receptor protein acts as a repressor, inhibiting gene transcription.

Explanation

Figure 11.9 illustrates that after the hormone-receptor complex enters the nucleus and stimulates gene transcription into mRNA, the mRNA leaves the nucleus and is translated into a specific protein in the cytoplasm Step 5 . Options 1, 2, and 4 describe incorrect steps or roles in the process.