Concept:
Hormones are categorized based on their chemical structure, mainly into peptide/protein hormones and steroid hormones.
Step 1: Classifying the given hormones.
- Oxytocin, Corticotropin, and Insulin are all composed of amino acid chains, making them peptide or protein-based hormones.
- Cortisone is derived from cholesterol, which classifies it as a steroid hormone.
Step 2: Confirming the chemical structure.
Since steroid hormones like Cortisone do not possess a peptide backbone, it is the correct answer.
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Hormone lacking peptide chain = Cortisone (Steroid)
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Cortisone
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