Explain the behavior of water molecules in the isotonic solution. **Educational Explanation of Osmosis with Diagrams**The image illustrates the principle of osmosis using a U-tube and three cellular scenarios in varying solutions.### U-tube Experiment**Before Osmosis:**- The U-tube is divided by a selectively permeable membrane.- The left side contains a solution with a higher concentration of sugar molecules, while the right side has a lower concentration.- Small circles represent water molecules, and larger dots represent sugar molecules.**After Osmosis:**- Water molecules move from the right side (lower concentration of sugar) to the left side (higher concentration of sugar) through the membrane.- This results in a rise in the water level on the left side.### Cellular Solutions1. **Cell in Isotonic Solution:** - Water molecules (thin-ringed circles) and dissolved particles (solid circles) are evenly distributed. - Water moves in and out of the cell at the same rate, maintaining equilibrium.2. **Cell in Hypotonic Solution:** - The environment has a higher concentration of water molecules compared to the cell's interior. - Water enters the cell by osmosis, leading to cell swelling.3. **Cell in Hypertonic Solution:** - The surrounding solution has a lower concentration of water molecules than inside the cell. - Water exits the cell, causing it to shrink.**Conclusion:**Osmosis is critical in maintaining cellular homeostasis by regulating water movement based on solute concentration gradients. Understanding this concept is vital for comprehending how cells interact with their environment.

The concentration of solute in the aqueous environment of cells can be used to define it. Hypertonic solutions have a higher concentration of solute than hypotonic solutions, hypotonic solutions have a lower concentration of solute, and isotonic solutions have the same quantity of solute on both sides. Diffusion is the process in which the net movement of molecules from a higher concentration area to a lower concentration area. In diffusion concentration gradient is the differential in a substance's concentration between two regions. When the water diffuses through a semipermeable membrane is known as osmosis. Water can pass across the membrane since it is semipermeable, but other dissolved substances, such as dissolved ions like Na+ and Cl-, may not. This has a number of intriguing ramifications. When compared to the intracellular solute concentration, an isotonic fluid has the same solute concentration. There will be no net flow of water when a red blood cell is put in an isotonic solution. There will be no net migration of water towards the solution or the cell since the concentrations of solute and water are identical both intracellularly and extracellularly. The cell and its surroundings are in balance, and the cell should seem unaltered under a microscope. In an isotonic solution, the number of solvents and solutes molecules is the same so the net movement of water is zero. Conclusion- No net movement of water in isotonic solution because the same numbers of solute and solvent are present on both sides of the permeable membrane in the tube.