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Earn 100

Thymosins play role in
(a)Cell-mediated immunity only
(b)Humoral immunity only
(c)Both cell-mediated and humoral immunity
(d)Neither cell-mediated and nor humoral immunity

50% studentsanswered this correctly
Important Questions on Chemical Control and Coordination
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Give reasons:
Old age people show weakened immune responses.

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HARD
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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