Thyroid peroxidase iodinates tyrosine residues within the thyroglobulin protein, and this enzymatic reaction occurs in the cytoplasm of follicular cells of the thyroid gland.  True  False.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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  1. Thyroid peroxidase iodinates tyrosine residues within the thyroglobulin protein, and this enzymatic reaction occurs in the cytoplasm of follicular cells of the thyroid gland.

     True

     False. 

    1. Although the thyroid gland releases far more thyroxine (T4) that triiodothyronine (T3), it is T3 that is the active hormone that regulates gene expression in target cells.

       True

       False

      1. In Gravesâ disease, circulating levels of both thyrotropin releasing hormone (TRH) and TSH are very low compared to a normal person.

         True

         False

        I do not need explanation. I need just the answer. 

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