Question

Which of these is incorrect?

• A. Glucagon is produced by pancreas.
• B. Prolactin is produced by ovary.
• C. Thyroxine is secreted by thyroid.
• D. Oxytocin is produced by pituitary.

Answer 1

The correct option is B Prolactin is produced by ovary.

A. Glucagon is produced by α-cells of islets of Langerhans and increases blood sugar level by stimulating glycogenolysis (breakdown of glycogen) and gluconeogenesis (synthesis of glucose from proteins and fats).

B. Prolactin, also known as lactogenic hormone is produced by the anterior lobe of pituitary gland.

C. Thyroxine is secreted from thyroid gland. It stimulates the consumption of oxygen by metabolically active tissues and also increases the oxidation of glucose in tissues.

D. Oxytocin is secreted from the posterior pituitary and helps in the contraction of uterus during childbirth and also stimulates release of milk from mammary glands i.e. lactation.

Hence, option B is incorrect.

So, the correct answer is 'Prolactin is produced by ovary'.