Feb 2, 2023 · Tonicity is the extracellular solution’s ability to make water move inside or outside the cell by the process of osmosis. It measures the amount of solute dissolved in a specific amount of the solution, also known as the solution’s osmolarity.

In biology, the tonicity of a solution usually refers to its solute concentration relative to that of another solution on the opposite side of a cell membrane; a solution outside of a cell is called hypertonic if it has a greater concentration of solutes than the cytosol inside the cell.

Oct 4, 2019 · A cell in an isotonic solution is in equilibrium with its surroundings, meaning the solute concentrations inside and outside are the same (iso means equal in Latin). In this state there is no concentration gradient and therefore, no large movement of water in or out.

Aug 8, 2023 · Tonicity is the capability of a solution to modify the volume of cells by altering their water content. The movement of water into a cell can lead to hypotonicity or hypertonicity when water moves out of the cell.

Apr 28, 2017 · In biology, the tonicity of the environment compared to the cell determines how water moves across the semipermeable membrane. The graphic below shows the tonicity of different environment, and which way water moves. Remember, water moves to balance the concentration gradient of the solutes.

Jan 17, 2023 · Tonicity describes how an extracellular solution can change the volume of a cell by affecting osmosis. A solution’s tonicity often directly correlates with the osmolarity of the solution. Osmolarity describes the total solute concentration of the solution.

Osmosis is the net movement of water across a selectively permeable membrane driven by a difference in solute concentrations on the two sides of the membrane. A selectively permiable membrane is one that allows unrestricted passage of water, but not solute molecules or ions.

Jul 13, 2024 · Tonicity refers to the ability of a solution to cause a cell to gain or lose water, impacting cellular function and survival. Its effects are seen across all domains of life, from plants and animals to microbes.

Jan 30, 2025 · Tonicity refers to the ability of a solution to cause a cell to gain or lose water. In animal cells, tonicity plays a vital role in maintaining cell shape and function. Understanding how animal cells react to different tonicities is important for studying cell biology and medical science.

Tonicity refers to the effect of a solution on cell volume. It is determined by whether a solution is isotonic, hypotonic, or hypertonic based on its impact on cell size. AI generated definition based on: Renal Physiology (Fifth Edition), 2013