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Tutor HuntTest QuestionsBiology QuestionsYear 10 Biology Questions

 

Osmosis (GCSE Biology)

The following is a GCSE Biology test covering 'Osmosis' from the broader topic Cell Biology. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Why do students blot potato pieces dry with a paper towel before re-weighing after osmosis treatment?
Plasmolysis is best described as:
In the context of osmosis, what does a negative percentage change in mass indicate?
Through which membrane type does osmosis occur?
What is the best reason for repeating each potato measurement several times and calculating a mean?
If a potato piece gains mass after placing in a solution, what does that indicate about the solution relative to the potato cell sap?
Which of these is a correct practical safety or ethical consideration for an osmosis investigation using plant tissue?
In a typical potato osmosis graph, the concentration at which there is no net mass change is called:
If a plant cell is placed in pure water, what happens to the cell?
Why is it appropriate to incubate biological osmosis tests at a constant temperature?
If you wish to find the concentration of solution that is isotonic to potato cells using a graph, what would you do?