Thyroid hormone is produced within spherical shape structures in the thyroid gland known as 3. 1_ _ _This structure consists of an outer layer of 3.2 epithelial cells and an inner section known-as 3.3___ . This inner section is filled with 3.4 ____ that is synthesised and secreted by-the cells and contains many tyrosine residues. Within this inner section, organification occurs when 3. 5 ____ molecules attach to these tyrosine residues forming either 3. 6____ (with one molecule attacl1ed) or 3. 7____(with two molecules attached). Through coupling, T3 and T4 are also formed. Of these two hormones;- 3. 8 ____is less potent but forms approximately 93% of the metabolically active hormones secreted the thyroid gland.
Thyroid hormone is produced within spherical shape structures in the thyroid gland known as 3. 1_ _ _
This structure consists of an outer layer of 3.2 epithelial cells and an inner section known-as 3.3___ . This inner section is filled with 3.4 ____ that is synthesised and secreted by-the cells and contains many tyrosine residues. Within this inner section, organification occurs when 3. 5 ____ molecules attach to these tyrosine residues forming either 3. 6____ (with one molecule attacl1ed) or 3. 7____
(with two molecules attached). Through coupling, T3 and T4 are also formed. Of these two hormones;- 3. 8 ____is less potent but forms approximately 93% of the
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