The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone

1. calcitonin 

2. prolactin

3. adrenaline

4. melatonin

Subtopic:  Pineal Gland |
 95%
From NCERT
AIIMS - 2015
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A gland called ‘Clock of ageing’ that gradually reduces and degenerates in ageing is

1. thyroid
2. thymus
3. parathyroid
4. pituitary

Subtopic:  Thymus |
 94%
From NCERT
AIIMS - 2014
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In a child of 15 years age, plasma calcium level is diagnosed below optimum level.Which organ is malfunctioning?

1. Thyroid gland

2. Liver

3. Parathyroid

4. Posterior lobe of pituitary

Subtopic:  Parathyroid |
 85%
From NCERT
AIIMS - 2013
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Assertion             :       Aldosterone increases the volume of blood and other extracellular fluids.

               

Reason     :     The secretion of aldosterone is stimulated by a fall in the circulating volume of blood.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Adrenal Cortex: Aldosterone |
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Assertion  :     Adrenal cortex can be removed without causing death.          

Reason     :     Adrenal cortex is not vital for survival.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Adrenal Cortex: Aldosterone |
 59%
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Assertion   :       FSH is also known as interstitial cell stimulating hormone.

Reason      :       It is because of the fact that FSH stimulates the interstitial cells of testis.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Gonadotropin & Gonadal Hormones |
 56%
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Assertion   :       Failure of secretion of somatotropin from an early age causes dwarfism in the patient.

Reason      :       Somatotropin hormone stimulates the body growth and elongation of long bones.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Human Growth Hormone |
 58%
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Assertion   :       Oxytocin is also known as Anti Diuretic hormone (ADH).

Reason      :       Oxytocin can cause an increase in the renal reabsorption of water.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Prolactin & Posterior Pituitary |
 85%
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Assertion   :       Failure of secretion of thyroid gland hormones from childhood causes cretinism disease.

Reason      :       Thyrotropin hormone maintains BMR and promote growth of body tissues.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Thyroid Gland Part I | Thyroid Gland Part II |
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Assertion   :       The tadpoles become giant tadpoles when fed on thiourea.

Reason      :       Thiourea is an antithyroid substance.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Thyroid Gland Part I | Thyroid Gland Part II |
 50%
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