Testosterone is categorized as which of the following types of hormones?

• A. Glycoprotein hormone
• B. Steroid hormone
• C. Amino acid-derived hormone
• D. Peptide hormone

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the classification of hormones. Hormones are categorized based on their chemical structure into four main types: steroid hormones, peptide hormones, glycoprotein hormones, and amino acid-derived hormones.
2. Step 2: Recall the structure of steroid hormones. Steroid hormones are derived from cholesterol and are lipid-soluble, allowing them to pass through cell membranes and bind to intracellular receptors.
3. Step 3: Identify testosterone's chemical nature. Testosterone is synthesized from cholesterol, making it a steroid hormone. It is involved in regulating male secondary sexual characteristics and other physiological processes.
4. Step 4: Compare testosterone to the other hormone types listed. Glycoprotein hormones are protein-based and have carbohydrate groups attached, amino acid-derived hormones are synthesized from single amino acids, and peptide hormones are short chains of amino acids. Testosterone does not fit these categories.
5. Step 5: Conclude that testosterone is correctly categorized as a steroid hormone based on its chemical structure and synthesis pathway.