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Earn 100

The pineal gland of the human brain secretes melatonin concerned with
(a)Anger
(b)Body temperature
(c)Colouration of skin
(d)Sleep

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Important Questions on Chemical Coordination and Integration
MEDIUM
Give reasons:
Old age people show weakened immune responses.

HARD
Write the name of the largest endocrine found in humans and describe four important diseases due to its disorder.

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Study the following table and pick up the correct combinations.
S.No | Hormone | Chemical nature | Function |
I) | Melatonin | Amine hormone | Regulation of circadian rhythms of the body. |
II) | Oxytocin | Peptide hormone | Stimulate powerful contractions of the uterus during childbirth. |
III) | Insulin | Protein hormone | Increases the uptake and utilisation of glucose by body cells. |
IV) | Testosterone | Steroid hormone | Development and maturation of male sex organs. |

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