The steroid hormone thyroxine (t4) acts on target cells by modifying the rate of

Question

The steroid hormone thyroxine (t4) acts on target cells by modifying the rate of transcription. The following statements describe the action of t4. Determine the correct order of the statements.

1. Thyroxine diffuses through the cell membrane.
2. Most t4 circulates in the bloodstream in an unbound, active form.
3. The receptor changed conformation, simulating gene transcription.
4. Thyroxine is derived from the amino acid tyrosine.
5. Thyroxine is release from the presynaptic neuron.
6. Thyroxine binds to a receptor on the surface of the cell membrane.
7. Most T4 circulates in the bloodstream bound to protein.
8. Thyroxine binds to a receptor in the nucleus.
9. Thyroxine is derived from cholesterol.

5 statements are used

Explanation / Answer

4, 7, 1, 8, 3

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