Final answer:
In osmosis, a 'hypertonic' concentration refers to a solution with a higher concentration of solutes compared to another solution or a cell, leading to water moving out of the cell.
Step-by-step explanation:
In osmosis concentration, a hypertonic concentration can mean a high concentration of solutes. When comparing two solutions across a semipermeable membrane.
The one with higher solute particle concentration and higher osmotic pressure is known as hypertonic, while the solution with lower solute particle and lower osmotic pressure is called hypotonic.
If we consider a cell in a solution, a hypertonic solution has a higher concentration of solute than that inside the cell, causing the net flow of water to move out of the cell, potentially leading to cell shrinkage.
Conversely, a hypotonic solution has a lower concentration of solute compared to the cell, resulting in water moving into the cell, which can lead to cell swelling or even bursting.