Question

Write a brief note about the hormones as regulators in animals.

Answer 1

The hormone is the organic substance secreted by different glands are present in animals that function in the regulation of physiological activities and in maintaining homeostasis. Hormones carry out their functions by responding to specific organs or tissues that are adapted to react to minute quantities of them. The practical view of hormones is that they are transmitted to their targets in the bloodstream after discharge from the glands that secrete them and this mode of discharge (directly into the bloodstream) is called endocrine secretion. They also include regulatory substances that are distributed by diffusion across cell membranes instead of by a blood system. For example, the estrogen hormone in females which is secreted by ovaries and uterus help in the development of sex organs and secondary female sexual characteristics and maintains pregnancy.