> Insulin: It is a peptide hormone. It is produced in the beta cells of the pancreas. A single protein that is the monomer of human insulin is composed of 51 amino acids which have a molecular mass of 5808 Da. It maintains the metabolism of macronutrients by promoting glucose absorption from blood into skeletal muscles, liver and fat.
Now we will analyse peptide hormone in brief: As we know peptide hormone also known as protein hormones whose molecules are peptides or proteins respectively.> Thyroxine: As we know thyroid hormones produced two hormones that are released by the thyroid gland namely triiodothyronine (T3) and thyroxine(T4). These are tyrosine-based hormones that are responsible for the regulation of metabolism. These two hormones are partially composed of iodine. When iodine is deficient it leads to decreased production of t3 and t4 which enlarges the thyroid gland and will cause the disease known as simple goitre.
> Adrenaline: As we know adrenaline also known as epinephrine produced by both the adrenal glands and a small number of neurons present in the medulla oblongata where it acts as a neurotransmitter. It plays an important role in the fight-or-flight response by increasing blood flow to the muscles and blood sugar level.
> Testosterone: As the name suggests, testosterone is the primary male sex hormone that plays a key role in the development of male reproductive tissues such as testes and prostate. In addition, testosterone is involved in the prevention of osteoporosis.
