BI-1728
Osmosis
Biology · Secondary 4 · Hard · Osmosis
A student places identical potato strips into 0.10 mol dm⁻³ and 0.40 mol dm⁻³ sodium chloride solutions for 2 hours. After the experiment, the strip in 0.10 mol dm⁻³ increases in length, while the strip in 0.40 mol dm⁻³ decreases in length. Which process best explains these observations?
- Osmosis of water into and out of the potato cells
- Diffusion of sodium ions into the potato cells only
- Active transport of water into the potato cells
- Diffusion of starch out of the potato cells
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.