BHU PMT BHU PMT Solved Paper-2002

  • question_answer
    The maintenance of internal favourable conditions by a self-regulated mechanism, in spite of the fact that there are changes in environment, is called:

    A)  entropy                                              

    B)  enthalpy

    C)   homeostasis                   

    D)  steady state

    Correct Answer: C

    Solution :

     Homeostasis is the maintenance of a constant internal environment by an organism or helps the cells to function more efficiently. Term homeostasis was coined by Cannon. Enthalpy is the total energy present in a biological system. It consist of useful and wasteful energy. The usable energy is known as free energy. The unusable (waste) energy is lost to disorder. This energy is known as entropy. Steady stage is a state of system in which the rate of input of energy and matter is equal to the dissipation of energy and output of material.


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