Core Practical: Investigating osmosis in potatoes (Edexcel GCSE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why should a ceramic tile be used when cutting potato with a cork borer?
Why should a ceramic tile be used when cutting potato with a cork borer?
To prevent accidents
What safety equipment is needed when working with the chemical solutions?
What safety equipment is needed when working with the chemical solutions?
Eye protection
Which sucrose concentrations are used in this experiment?
Which sucrose concentrations are used in this experiment?
0%, 20%, 30%, 40%, 60%, 80%, 100%
How long should potato cylinders be left in the solutions?
How long should potato cylinders be left in the solutions?
At least 40 minutes
What is the independent variable in this experiment?
What is the independent variable in this experiment?
Concentration of sucrose solutions
What is the dependent variable in this experiment?
What is the dependent variable in this experiment?
Change in mass of potato cylinders
What is osmosis?
What is osmosis?
Water moving from high to low water conc.
What happens to potato cylinders in low sucrose concentrations?
What happens to potato cylinders in low sucrose concentrations?
Water moves in, mass increases
What happens to potato cylinders in high sucrose concentrations?
What happens to potato cylinders in high sucrose concentrations?
Water moves out, mass decreases
What does no change in mass indicate?
What does no change in mass indicate?
Isotonic - same water concentration