Question

Which of the following hormones have antagonistic effects?

• A. Insulin and glucagon
• B. Oxytocin and vasopressin
• C. Epinephrine and cortisol
• D. Gastrin and secretin

Answer 1

The correct option is A Insulin and glucagon

Antagonistic hormones are those hormones which have opposite actions on the body. Insulin and glucagon are examples of antagonistic hormones. Both of them play a major role in the regulation of the level of glucose in blood. Insulin decreases blood glucose levels, whereas glucagon increases blood glucose levels.

Oxytocin plays a major role in childbirth in females. Vasopressin is responsible for reducing the loss of water from the body.

Epinephrine is released by the adrenal medulla. It is released in response to emergency situations. The adrenal cortex secretes hormones called corticoids. The corticoids, which are involved in carbohydrate metabolism, are called glucocorticoids. Cortisol is the main glucocorticoid in our body.

Secretin and gastrin are secreted by endocrine cells of gastrointestinal tract. Secretin acts on the exocrine part of the pancreas and stimulates the secretion of water and bicarbonate ions. Gastrin acts on gastric glands. It is responsible for the secretion of hydrochloric acid and pepsinogen.