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Chemical Coordination and Integration question

2023 · Q80
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Chemical Coordination and Integration question

2023 · Q80

NEETBiologyChemical Coordination and IntegrationMCQ+4 / −1

Given below are two statements :

Statement I : Parathyroid hormone acts on bones and stimulates the process of bone resorption.

Statement II : Parathyroid hormone along with Thyrocalcitonin plays a significant role in carbohydrate metabolism.

In the light of the above statements, choose the correct answer from the options given below :

  1. A
    Statement I is correct but Statement II is false
  2. B
    Statement I is incorrect but Statement II is true
  3. C
    Both Statement I and Statement II are true.
  4. D
    Both Statement I and Statement II are false.
View written solutionFree

Correct answer: A

Option A is correct : Statement I is correct but Statement II is false.

Statement I : Parathyroid hormone (PTH) indeed acts on bones and stimulates the process of bone resorption. It also acts on the kidneys to stimulate reabsorption of calcium, and on the intestines (indirectly via vitamin D activation) to enhance absorption of dietary calcium. All these actions increase the blood calcium levels.

Statement II : Parathyroid hormone and calcitonin (produced by the thyroid gland, not "Thyrocalcitonin") are key regulators of calcium homeostasis in the body. However, they do not play a significant role in carbohydrate metabolism. The key hormones involved in carbohydrate metabolism are insulin and glucagon, both produced by the pancreas. Therefore, Statement II is false.

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