Home
Class 11
BIOLOGY
A hormone responsible for normal sleep w...

A hormone responsible for normal sleep wake cycle is

A

epinephrine

B

gastrin

C

melatonin.

D

insulin.

Text Solution

Verified by Experts

The correct Answer is:
C

Melatonin is a hormone secreted by pineal gland. Immediately above the optic chiasma (in the brain) in a nuceus, are present melatonin receptors that react to this hormone and synchronise the nuclues to the 24 hrs day/night rhythm thus informing the brain when it is day and when it is right
Promotional Banner

Topper's Solved these Questions

  • CELL CYCLE AND CELL DIVISION

    NCERT FINGERTIPS|Exercise Cell Cycle And Cell Division|130 Videos
  • DIGESTION AND ABSORPTION

    NCERT FINGERTIPS|Exercise Digestion And Absorption|137 Videos

Similar Questions

Explore conceptually related problems

The hormone responsible for anger is

Hormone responsible for ageing is

Hormone responsible for senescence

Hormone responsible for cretinism is

Hormone responsible for ovulation is

Gland which is responsible for rhythms of sleep wake cycle

The hormone responsible for vagus nerve activity is

Hormone responsible for vernalization is

NCERT FINGERTIPS-CHEMICAL COORDINATION AND INTEGRATION-Chemical Coordination And Integration
  1. Corpus luteum secretes a hormone called

    Text Solution

    |

  2. Cortisol is secreted from

    Text Solution

    |

  3. A hormone responsible for normal sleep wake cycle is

    Text Solution

    |

  4. Hormones are called chemical signals that stimulate specific target ti...

    Text Solution

    |

  5. Choose the correct option among the following.

    Text Solution

    |

  6. Which of the following does not play any role in calcium balnce in the...

    Text Solution

    |

  7. Which of the following organs in mammals does not consist of acentral...

    Text Solution

    |

  8. Which of the following conditions is not linked to deficiency of thyr...

    Text Solution

    |

  9. Assertion: Neurohypophysis is under the direct regulation of the hypot...

    Text Solution

    |

  10. Assertion: Oxytocin is called 'milk-ejection hormone' Reason: Oxytoc...

    Text Solution

    |

  11. Assertion: Melatonin influences the menstrul cycle. Pigmentation and d...

    Text Solution

    |

  12. Assertion: Thyroid hormones promote physical growth and development of...

    Text Solution

    |

  13. Assertion: PTH is a hypercalcemic hormone. Reason: Thymus degenerate...

    Text Solution

    |

  14. Assertion: Immune response of old persons become weak. Reason: Thymu...

    Text Solution

    |

  15. Assertion: Adrenal cortex is not vital for survival and may be removed...

    Text Solution

    |

  16. Assertion: Adrenal medullary hormones help in combating the stress con...

    Text Solution

    |

  17. Assertion: Cortisol produces anti-inflammatory reactions and suppresse...

    Text Solution

    |

  18. Assertion: Insulin stimulates glycogenolysis and gluconegensis and glu...

    Text Solution

    |

  19. Assertion: Insulin is an anabolic hormone. Reason: A fall in blood ...

    Text Solution

    |

  20. Assertion: Androgens stimulate muscular growth. Reason: Androgens pr...

    Text Solution

    |