Multiple Choice
The thyroid gland regulates bone growth and maintenance through its production of what hormone?
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16. The Endocrine System
Introduction to the Endocrine System
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How are hydrophobic hormones transported through the body?
A
They are bound to transport proteins in the bloodstream.
B
They are stored in vesicles until needed.
C
They are dissolved directly in the blood plasma.
D
They are converted into hydrophilic forms for transport.
Verified step by step guidance1
Understand the nature of hydrophobic hormones: These hormones are lipid-soluble and do not dissolve well in water, which is the main component of blood plasma.
Recognize the role of transport proteins: Hydrophobic hormones bind to specific transport proteins in the bloodstream, which helps them remain soluble and be transported effectively throughout the body.
Consider the storage mechanism: Hydrophobic hormones are not typically stored in vesicles like hydrophilic hormones, as they can easily pass through cell membranes due to their lipid-soluble nature.
Evaluate the possibility of direct dissolution: Hydrophobic hormones cannot dissolve directly in the blood plasma due to their lipid-soluble nature, which necessitates the use of transport proteins.
Assess conversion into hydrophilic forms: Hydrophobic hormones are not converted into hydrophilic forms for transport; instead, they rely on binding to transport proteins to travel through the aqueous environment of the bloodstream.
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