Question 1: What is homeostasis? What are the different types of homeostasis?
Homeostasis is the combination of two Greek words, Homios means similar and stasis means standing still. The maintenance of the internal conditions of body at equilibrium, despite changes in the external environment is called homeostasis. “OR” The ability of a living organism to maintain or nearly maintain constant internal environmental conditions is called homeostasis. “OR” The response of a living organism to changing environment is called homeostasis. Homeostasis helps an organism to survive and utilize its environment in best possible way.
For example, the core temperature of human body remains at about 37°C despite fluctuations in the surrounding air temperature. Similarly, the blood glucose level remains about 1g per litre despite eating a meal rich in carbohydrates. Body cells need the internal environment in which conditions do not change much. Stable internal conditions are important for the efficient functioning of enzymes.