Homeostasis Notes: Definitions & Explanations PDF | Download eBooks
Study Homeostasis lecture notes PDF with biology definitions and explanation to study “What is Homeostasis?”. Study homeostasis explanation with biology terms to review biology course for online degree programs.
Homeostasis Definition:
Homeostasis, which means "steady state", referring to the maintenance of internal balance.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Homeostasis Notes:
Homeostasis is the state of steady internal physical and chemical conditions maintained by living systems. This dynamic state of equilibrium is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits. Other variables include the pH of extracellular fluid, the concentrations of sodium, potassium and calcium ions, as well as that of the blood sugar level, and these need to be regulated despite changes in the environment, diet, or level of activity. Each of these variables is controlled by one or more regulators or homeostatic mechanisms, which together maintain life.
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