Core Practical: Investigating osmosis in potatoes (Edexcel GCSE Biology Combined Science): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is one aim of the potato osmosis practical?
What is one aim of the potato osmosis practical?
To see how sucrose affects potato mass
Why should a ceramic tile be used when cutting the potato?
Why should a ceramic tile be used when cutting the potato?
To prevent accidents with the cork borer
What safety equipment must be worn when working with chemical solutions?
What safety equipment must be worn when working with chemical solutions?
Eye protection
Which sucrose concentrations are used in this practical?
Which sucrose concentrations are used in this practical?
0%, 20%, 30%, 40%, 60%, 80%, 100%
How long should the potato cylinders be left in the solutions?
How long should the 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?
The concentration of sucrose solutions
What is the dependent variable in this experiment?
What is the dependent variable in this experiment?
The change in mass of potato cylinders
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 about the solution?
What does no change in mass indicate about the solution?
It is isotonic with the cell sap