9700/11 Biology May Jun 2014 Online Test | Cambridge AS and A Level MCQ

Strips of potato tuber tissue were immersed in distilled water or in sucrose solutions of different concentrations. The graph shows the percentage change in length of the strips.
Which statement explains the change that occurred in the potato strips immersed in $0.1{\text{ }}mol{\text{ }}d{m^{-3}}$ sucrose solution?