<p>Hmm now that I peruse the answer, I think the wording is pretty much misleading. When talking about tonicity, we usually say “the solution is hypertonic”, not “the concentration is hypertonic”. It is mostly worded as “The concentration is greater than…”. Tonicity is applied to solution, not solutes. </p>
<p>And perhaps mnstrivola has a point. But even so, the original phenomenon would be the sugar solution is hypertonic to the cell right?</p>