The 2.5% solution is said to be Hypertonic to the cellular concentration. A hypertonic solution is one that has a bigger solute concentration outside of the cell, which mean the cell will loss water due to the osmosis process.
Tonicity refers to the concentration of solutes in a solution. Tonicity is the phenomenon that facilitates osmosis by forming a concentration gradient i.e. direction of flow of water in or out of the cell. The tonicity of a solution can either be hypertonic, hypotonic or isotonic. An hypertonic solution is that which contains high concentration of solutes in comparison to the intracellular solution. An hypotonic solution is that which contains low concentration of solutes in relation to the intracellular solution. A solution is said to be isotonic if it contains an equal amount of solute concentration with the intracellular solution.
According to the question, a cell contains 0.9% internal solute concentration while the extracellular solution contains 2.5% solute concentration. The solute concentration of the extracellular solution (2.5%) is higher than that of the cell (0.9%), hence, the extracellular solution is said to be HYPERTONIC to the cell's solution.
Based on the principle of OSMOSIS, which is the movement of water from a region of lower solute concentration to a region of high solute concentration via a semi-permeable membrane, water will ultimately move out of the cell due to the concentration gradient formed by the difference in solute concentration of both solutions.
The Carbon<span>/Oxygen </span>Cycle<span> involves three </span>major processes<span> and one minor </span>process<span>: photosynthesis, respiration, combustion and decomposition.</span>
Mitosis is not a source of genetic mutation because it take place mostly in the somatic cells. This is because it does not lead to the production of gametes . In mitosis, the parent cells divide into two daughter cells and each daughter cells are genetically identical to the parent cell because they carry the same number of chromosomes as the parent cell. There is no genetic variation in this.