NEET 2016 Biology question

Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?

(1)Parathormone - Calcitonin
(2)Insulin - Glucagon
(3)Aldosterone - Atrial Natriuretic Factor
(4)Relaxin - InhibinCorrect

Answer: (4)

Solution

Parathormone raises blood calcium whereas calcitonin lowers it, so (1) is antagonistic. Insulin lowers and glucagon raises blood glucose, so (2) is antagonistic. Aldosterone increases Na+ and water reabsorption (raising blood pressure) while atrial natriuretic factor

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Question ID VK-091942