Core Practical: Investigating osmosis in potatoes (Edexcel GCSE Biology): Flashcards

Investigate effect of sucrose conc. on potato cylinder mass

Eye protection

0%, 20%, 30%, 40%, 60%, 80%, 100%

Cork borer

At least 40 minutes

Concentration of sucrose solution

Change in mass of potato cylinders

Time, size/shape of cylinders, temperature

Water moves from high to low water conc. via semi-permeable memb.

Water moves into cells, mass increases

Water moves out of cells, mass decreases

No change in mass, same water concentration

$\frac{\text{final} - \text{initial}}{\text{initial}} \times 100$