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

Investigate effect of sucrose conc. on potato cylinder mass

Place potato on ceramic tile

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

At least 40 minutes

Concentration of sucrose solutions

Change in mass of potato cylinders

Water moves from high to low water conc. through semi-permeable membrane

Water moves into cells, mass increases

Water moves out of cells, mass decreases

Same water conc. in solution & cells, no mass change