Which biochemical event does not take place during thyroid hormone synthesis?
A)One monoiodotyrosine molecule combines with one di-iodotyrosine molecule to form one tri-iodothyronine molecule.
B)Two iodine molecules combine with one tyrosine molecule to form one di-iodotyrosine molecule.
C)Two di-iodotyrosine molecules combine to form one molecule of thyroxine.
D)Four iodine molecules combine with one tyrosine molecule to form one tetraiodothyronine molecule.
E)None of the above take place

Question

Quizplus · Accepted Answer

In thyroid hormone synthesis, iodine atoms, not molecules, combine with tyrosine residues. Four iodine atoms combine with two tyrosine residues to form thyroxine (T4), not with one tyrosine molecule.

Which Biochemical Event Does Not Take Place During Thyroid Hormone