NEET 2010 Biology question

Select the correct matching of a hormone, its source and function. Each option below gives: Hormone – Source – Function.

(1)Prolactin – Posterior pituitary – Regulates growth of mammary glands and milk formation in females
(2)Vasopressin – Posterior pituitary – Increases loss of water through urine
(3)Norepinephrine – Adrenal medulla – Increases heart beat, rate of respiration and alertnessCorrect
(4)Glucagon – Beta-cells of islets of Langerhans – Stimulates glycogenolysis

Answer: (3)

Solution

Norepinephrine (noradrenaline) is secreted by the adrenal medulla together with epinephrine; it increases heart beat, rate of respiration and alertness (emergency or fight-or-flight hormone). Option (3) is correct. (1) Prolactin is secreted by the anterior pituitary (adenohypophysis),

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Question ID VK-090399