Concepts In Homeostais
Q. Define Homoestasis, osmoregulation, excretion and thermoregulation.
- Homeostasis: The protection of internal environment of an organism from the harms of fluctuations taking place in external environment is called Homestasis.
- Osmoregulation: The mechanism of regulation of solute and the gain and loss of water between organism and environment is known as osmoregulation.
- Excreation: The mechanism which eliminate metabolic wastes especially nitrogenous wastes is called excreation.
- Thermoregulation: Maintenance of internal temperature which in a tolerable range is designated as thermoregulation e.g. In human temperature is maintained between 36.1 to 37.8 centigrade.
Importance of Homeostasis:
- The homeostasis keeps the internal fluctuations in a narrow range with various control system compared to winder external environment.
- Homeostasis is the central requirement in the maintenance of an organism, which make adaptions in the constant changing conditions and contributes in evolutionary process.
Most susceptible Components: Most susceptible components of internal environment that may be affected by fluctuations in external environments are:
(i) Water (ii) Solutes (iii) Temperature
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