Multiple Choice
Which gland produces oxytocin?
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16. The Endocrine System
Introduction to the Endocrine System
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Peptide hormones include which of the following?
A
Cortisol
B
Aldosterone
C
Thyroxine
D
Insulin
Verified step by step guidance1
Understand that peptide hormones are composed of amino acids and are water-soluble, allowing them to travel freely in the bloodstream.
Recognize that cortisol and aldosterone are steroid hormones, which are derived from cholesterol and are lipid-soluble, not peptide hormones.
Identify that thyroxine is an amino acid-derived hormone, specifically a thyroid hormone, and not a peptide hormone.
Recall that insulin is a classic example of a peptide hormone, as it is composed of amino acid chains and functions in regulating blood glucose levels.
Conclude that among the options provided, insulin is the correct example of a peptide hormone.
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