Thyroid hormones, such as thyroxine (T4) and triiodothyronine (T3), are derivatives of the amino acid tyrosine and are stored on thyroglobulin within the follicular colloid. Therefore, both options A and B are correct, and option C is also correct. Therefore, option D, which includes all of these choices, is the best answer.

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Thyroid Hormones Are

Question 18

Multiple Choice

Thyroid hormones are

A) derivatives of an amino acid
B) produced from tyrosine
C) stored on thyroglobulin within the follicular colloid
D) all of these
E) derivatives of an amino acid and stored on thyroglobulin within the follicular colloid

Correct Answer: