Dictionary > Isotonicity

Isotonicity

Definition
noun
The state of being isotonic, or having equal tension or tonicity
Supplement
In biology, tonicity pertains to two definitions. The first one is associated with the osmotic pressure exerted upon a membrane and the other is about tone or tension (in a muscle or an organ). Relevant terms include isotonicity, hypertonicity, and hypotonicity.
In general, isotonicity pertains to the state of being isotonic, or having equal tension or tonicity. At the cellular level, isotonicity may pertain to a property of a solution in which its solute concentration is the same as the solute concentration of another solution with which it is compared. It may also pertain to a condition or property of a solution that has the same tonicity as the other solution with which it is compared. In tissue level, isotonicity is defined as a condition in which the muscle remains to be in a relatively constant tension while its length changes.
Isotonicity occurs in a cell when its solute concentration is the same as the solute concentration of the environment surrounding the cell. The result is there is no net movement of the water and permeable solutes.
Word origin: iso– + Greek tonos (“tension”)
Compare:

See also:

  • tonicity
  • Related form(s):

    • isotonic (adjective, of, pertaining to, or relating to, isotonicity)


    You will also like...

    3D rendering of an antibody
    Passive and Active Types of Immunity

    Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..

    Cell Respiration
    Cell Respiration

    Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..

    sponge
    Primitive Animals

    Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..

    kinesin motor proteins transporting molecules across microtubules
    Movement of Molecules Across Cell Membranes

    Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..

    Pollution in Freshwater Ecosystems
    Pollution in Freshwater Ecosystems

    There are many environmental factors that arise due to the usage of water in one way or another and for every action tha..

    Golgi apparatus (3-D illustration)
    Role of Golgi Apparatus & Endoplasmic Reticulum in Protein Synthesis

    The endoplasmic reticulum and Golgi apparatus are the organelles involved in the translation step of protein synthesis a..