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NEET BIOLOGYChemical Coordination and IntegrationMedium

Question

Which of the following are not the effects of Parathyroid hormone? (a) Stimulates the process of bone resorption (b) Decreases Ca2+ level in blood (c) Reabsorption of Ca2+ by renal tubules (d) Decreases the absorption of Ca2+ from digested food (e) Increases metabolism of carbohydrates

A

(b) and (c) only

B

(a) and (c) only

C

(b), (d) and (e) only

D

(a) and (e) only

Step-by-Step Solution

Parathyroid hormone (PTH) increases Ca2+ levels in the blood (hypercalcemic hormone) . It acts on bones and stimulates the process of bone resorption (dissolution/demineralisation) . It also stimulates the reabsorption of Ca2+ by the renal tubules and increases Ca2+ absorption from digested food . Therefore, decreasing Ca2+ levels (b), decreasing absorption from food (d), and regulating carbohydrate metabolism (e) are NOT effects of PTH. Carbohydrate metabolism is regulated by thyroid hormones and glucocorticoids .

Exam Context & Concepts Covered

This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Chemical Coordination and Integration. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

BIOLOGYChemical Coordination and Integrationfollowingeffectsparathyroidhormonestimulates

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