A solution outside of a cell that contains a greater concentration of dissolved particles than the cell's contents is said to be hypertonic.

Here's why:

* Hypertonic: Means "above strength" in terms of solute concentration. This means the solution has a higher concentration of dissolved substances (like salts, sugars, etc.) compared to the inside of the cell.

* Hypotonic: Means "below strength". A hypotonic solution has a lower solute concentration than the cell.

* Isotonic: Means "equal strength". The solute concentration inside and outside the cell are the same.

What happens in a hypertonic solution?

When a cell is placed in a hypertonic solution, water will move out of the cell and into the solution to try and balance the concentration. This can lead to the cell shrinking or becoming dehydrated.