INBDE (Integrated National Board Dental Examination) Practice Exam

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What type of hormone is insulin?

  1. Steroid

  2. Peptide

  3. Lipid

  4. Carbohydrate

The correct answer is: Peptide

Insulin is a peptide hormone. Steroid hormones are derived from cholesterol, while insulin is a polypeptide chain. Lipid hormones are made from non-polar substances, while insulin is a polar molecule. Carbohydrate hormones are not a recognized hormone category.

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