Hormones of which of the following endocrine glands lacks peptides, am...
Understanding Hormonal Composition
Hormones are classified based on their chemical structure into three main categories: peptides, amines, and steroids. Each endocrine gland produces distinct hormones that can be categorized accordingly.
Testes and Gonads
- The primary hormones produced by the testes and gonads are steroids, specifically androgens (like testosterone) and estrogens.
- Steroids are derived from cholesterol and do not fall under the categories of peptides or amines.
Comparison with Other Glands
- Thyroid and Adrenal Gland:
- The thyroid gland produces thyroid hormones (T3 and T4), which are amines derived from the amino acid tyrosine.
- The adrenal gland produces hormones like cortisol (a steroid) and epinephrine (adrenaline) (an amine), hence they contain both amines and steroids.
- Anterior Pituitary:
- This gland releases various peptide hormones like growth hormone (GH) and luteinizing hormone (LH), which do not match the criteria.
- Posterior Pituitary and Pancreas:
- The posterior pituitary releases oxytocin and vasopressin, which are peptides. The pancreas produces insulin and glucagon, which are also peptide hormones.
Conclusion
- Therefore, the hormones of the testes and gonads (option C) uniquely lack peptides, amines, and sulfur, as they primarily consist of steroid hormones. This distinct hormonal profile sets them apart from the hormones produced by the other listed glands.
Hormones of which of the following endocrine glands lacks peptides, am...
Hormones of testes and gonads are steroid in nature. They are derived from cholesterol.