PHYSIOLOGY
ENDOCRINOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The major constituent of colloid is the large glycoprotein called ____
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Thyroglobulin
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Albumin
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Thyroxine binding globulin
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Thyrpoeroxidase
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Explanation:
Detailed explanation-1: -Thyroglobulin is the most abundant protein in the thyroid gland, and the protein backbone for synthesis of T3 and T4 hormones. The most stable form of Tg is a 660 kDa glycoprotein built of two chains (12S forms), 330 kDa each [68].
Detailed explanation-2: -building hormones Thyroglobulin is stored within the gland in follicles as the main component of a substance called the thyroid colloid. This arrangement, which provides a reserve of thyroid hormones, perhaps reflects the frequent scarcity of environmental iodine, particularly on land and in fresh water.
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