Question

Which of these is a protein hormone?

• A. Cortisol
• B. Insulin
• C. Estrogen
• D. All of the above

Answer 1

The correct option is B Insulin

A. Cortisol is a glucocorticoid hormone secreted from adrenal cortex and regulates carbohydrate metabolism , storage of glycogen and increased reabsorption of sodium and water from the renal tubules.

B. Insulin is a peptide or proteinaceous hormone secreted from the β cells of islets of Langerhans of pancreas. Insulin acts on hepatocytes and adipocytes and increases the uptake of cellular glucose and its utilisation.

C. Estrogen is the female sex hormone. It is a steroid hormone secreted from ovarian follicles and stimulate the development of female secondary sex organs.

So, the correct answer is 'Insulin'.