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Assertion : The antidiuretic hormone inc...

Assertion : The antidiuretic hormone increases the water permeability of distal convoluted tubule .
Reason : In absence of ADH , water re-absorption is considerably reduced .

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and the reason are true and the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
B
(b) ADH is secreted by pituitary gland . It increase the water permeabilty of distal convoluted tubules and collecting of distal convoluted tubules , hence , plays a significant role in water re-absorption . The absence of ADH will reduce water reabsorption which may lead to water dicuresis or diabetes insipidus.
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Knowledge Check

  • Assertion :- Antidiuretic hormone, increases the water permeability of distal convoluted tubule. Reason :- In the absence of ADH, water re-absorption is considerably increases.

    A
    If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion .
    B
    If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion
    C
    If Assertion is True but the Reason is False.
    D
    If both Assertion & Reason are false.

  • In the renal tubules the permeability of the distal convoluted tubule and collecting duct to water is controlled by

    A
    renin
    B
    calcitonin
    C
    vasopressin
    D
    growth hormone

  • Assertion : Vasopressin of posterior pituitary is also called anti-diuretic hormone. Reason : ADH increases the permeability of PCT and collecting tubules to increase reabsorption of water-and decrease the urine output.

    A
    If both Assertion and Reason are true and Reason is correct explanation of the Assertion.
    B
    If both Assertion and Reason are true but Reason is not correct explanation of the Assertion.
    C
    If Assertion is true but Reason is false.
    D
    If both Assertion and Reason are false.

    • Similar Questions

    Explore conceptually related problems

    Assertion: Antidiuretic hormone (ADH) controls the amount of water in the urine. Reason: ADH determines the permeability of the collecting duct to water.

    Assertion. Oxytocin is also called antidiuretic hormone Reason. Oxytocin increases renal reabsorption of water.

    Reabsorption of water in proximal convoluted tubules and distal convoluted tubules is respectively

    Assertion : Vasopression is also called as antidiuretic hormone. Reason : Vasopressin reduces the loss of water in urine by increasing water reabsorbtion in nephrons.

    Assertion : The failure of secretion of hormone vasopressin causes diabetes mellitus in the patient. Reason : Vasopression reduces the volume of urine by increasing the reabsorbtion of water from the urine.

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