question_answer

  Hormones are needed by our body in an appropriate amount. Slightly more or less secretion causes disorder in our body. Illustrate this by using three examples.

Answer:

  Hyper secretion    (more    secretion)    or hypo secretion (less secretion) of any hormone leads to disorders in our body. Some of the examples of such types of disorders are as follows (i) Goitre This disorder is caused due to deficieny of iodine in our diet. Iodine is necessary for the synthesis of throxine hormone which is secreted from thyroid gland.                                                                                               (1) (ii) Gigantism and Dwarfism Hyper secretion of growth hormone results in gigantism (very tall people). Hyposecretion or deficient of growth hormone at an early stage of life makes the person dwarf.                              (1) (iii) Diabetes Mellitus Insulin helps to lower the blood glucose level. When it is secreted in less amount, the body suffers from diabetes as more and more glucose accumulates in the body.                                          (1)