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 process can be summarized as: glucose + oxygen → carbon dioxide + water. During this process, the energy stored in glucose is transferred to ATP. Energy is stored in the bonds between the phosphate groups (PO4-) of the ATP molecule. ... When ADP and inorganic phosphate are joined to form ATP, energy is stored.
A. Nutrients and other materials pass through the cell membrane through the process of diffusion. This allows the cell to perform all the activities it requires for daily maintenance and living. The concentration gradient allows the cell to regulate just how much of a certain material passes through it.
