(a)[3]
Define osmosis.
(b(i))[1]
Predict which of the liquids would lead to the greatest decrease in the mass of a potato stick.
(b(ii))[1]
The students blotted the potato sticks with paper towels before placing them on the electronic balance. Suggest why.
(c)[3]
Explain why the potato stick had become soft and floppy.
(d)[2]
Suggest why the mass of the boiled potato sticks remained unchanged.