As an expert in the field of biochemistry and physiology, I can tell you that
osmolarity is a measure of the concentration of solutes in a solution, specifically the number of osmotically active particles per liter of solution. It is typically expressed in units of
osmoles per kilogram (osmol/kg) of water or, more commonly,
osmoles per liter (osmol/L). The osmolarity of a solution is crucial in determining the movement of water across cell membranes, which is essential for maintaining cellular function and overall homeostasis in living organisms.
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