Investigating Water Potential (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
In which direction does water move in terms of water potential?
In which direction does water move in terms of water potential?
From high to low water potential
What is the purpose of a calibration curve in this practical?
What is the purpose of a calibration curve in this practical?
To determine unknown concentrations
Which sucrose concentrations are used in the dilution series?
Which sucrose concentrations are used in the dilution series?
0.0M, 0.2M, 0.4M, 0.6M, 0.8M, 1.0M
What volume of each solution is measured into separate test tubes?
What volume of each solution is measured into separate test tubes?
5cm³
How long should potato chips be incubated in the sucrose solutions?
How long should potato chips be incubated in the sucrose solutions?
20 minutes
What does the isotonic point represent?
What does the isotonic point represent?
Concentration with equal water potential
What does it mean when the line of best fit crosses the x-axis on the graph?
What does it mean when the line of best fit crosses the x-axis on the graph?
Zero change in mass (isotonic point)
What happens to potato chips in lower concentrations of sucrose?
What happens to potato chips in lower concentrations of sucrose?
Mass increases as water enters
What happens to potato chips in higher concentrations of sucrose?
What happens to potato chips in higher concentrations of sucrose?
Mass decreases as water exits