Lesson 4.1.3.2
4.1.3.2 Osmosis Quiz: AQA Biology, Unit 1
20 questions
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Lesson 4.1.3.2, Osmosis: 20 multiple choice questions for the AQA GCSE Biology (8461), Unit 1: Cell biology, written with Revision Ninja.
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The 20 questions
-
Osmosis is the diffusion of which substance across a partially permeable membrane?
- Urea
- Glucose
- Water
- Sodium
-
Osmosis is a special case of:
- Binary fission
- Mitosis
- Diffusion, involving water
- Active transport
-
Water moves into a plant cell by osmosis when the surrounding solution is:
- More concentrated
- More dilute
- At boiling point
- Saturated with salt
-
A plant tissue sample increases from 10.0 g to 12.0 g. What is the percentage gain in mass?
- 10%
- 20%
- 2%
- 12%
-
A plant tissue sample decreases from 20 g to 16 g. What is the percentage loss in mass?
- 16%
- 20%
- 25%
- 4%
-
A sample of potato loses 1.5 g from an initial mass of 6.0 g. What is the percentage change?
- 25% loss
- 15% loss
- 25% gain
- 6% loss
-
A piece of potato gains mass in a solution. What process caused this mass gain?
- Cell division
- Osmosis
- Transpiration
- Active transport
-
Which units can be used to measure the rate of water uptake by plant tissue?
- Grams per hour
- Grams per metre
- Joules per gram
- Metres per second
-
Which type of molecules can pass through a partially permeable membrane during osmosis?
- No molecules
- All molecules
- Large molecules
- Small molecules
-
What happens to plant tissue placed in a concentrated sugar solution?
- Loses mass
- Bursts immediately
- Stays unchanged
- Gains mass
-
On a graph of percentage mass change against concentration, what does a negative value show?
- Mass gain
- Mass loss
- Volume gain
- Zero change
-
In an osmosis practical graph, what does the x-intercept represent?
- Isotonic concentration
- Rate of transport
- Boiling point
- Maximum mass gain
-
In osmosis, water moves from a dilute solution to what type of solution?
- A concentrated solution
- A pure solution
- A dilute solution
- A neutral solution
-
Why does a potato tissue gain mass when placed in pure water?
- Salt enters cells
- Salt leaves cells
- Water enters cells
- Water leaves cells
-
Which mass change represents the highest percentage increase in mass?
- 5g to 6g
- 20g to 21g
- 10g to 11g
- 50g to 51g
-
Why does plant tissue lose mass when placed in a concentrated sugar solution?
- Sugar enters cells
- Water enters cells
- Water leaves cells
- Sugar leaves cells
-
What must be calculated first when finding percentage mass change in osmosis experiments?
- Total volume
- Surface area
- Mass change
- Initial density
-
In which solution will plant tissue lose water by osmosis?
- Concentrated sugar solution
- Distilled water
- Dilute sugar solution
- Pure water
-
A plant tissue shows a gain of 2 g from an original mass of 40 g. What is the percentage gain?
- 2%
- 5%
- 50%
- 20%
-
What term describes plant cells that have lost water and pulled away from the cell wall?
- Turgid
- Lysis
- Plasmolysed
- Flaccid
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