| 1. | In the diagram of 4 cells, the % solute concentration in each cell is given.
Water would move by osmosis from…. |
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A. | cell 1 to cell 2 | |
B. | cell 2 to cell 3 | |
C. | cell 3 to cell 4 | |
D. | cell 4 to cell 1 | ||
| 2. | In which example in the table below will water move from X to Y by osmosis?
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| Solute Concentration (%) | |||
| Solution X | Solution Y | ||
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A. | 3 | 8 |
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B. | 8 | 3 |
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C. | 3 | 1 |
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D. | 3 | 3 |
| 3. | The diagram shows a visking tubing experiment involving sugar solutions of different concentrations.Solution R = 1% sucrose solution Solution S = 3% sucrose solutionThe experiments was left for 30 minutes.Predict the result of the experiment.
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A. | Water moves into the bag and the contents of the bag gain mass | |
B. | Water moves out of the bag and the contents of the bag lose mass | ||
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C. | Water moves out of the bag and the contents of the bag gain mass | |
D. | Water moves into the bag and the contents of the bag lose mass | ||
| 4. | A plant cell, which was placed in a liquid, gained water by osmosis.When compared to the liquid, the cell contents are described as being | |
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A. | plasmolysed |
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B. | hypertonic |
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C. | hypotonic |
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D. | flaccid |
| 5. |
The diagram below shows the initial diameter of a potato disc. The potato disc was placed in a hypotonic solution for one hour.
Which of the diagrams below correctly shows the change in the diameter of the disc? |
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A. |
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B. |
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C. |  |
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D. |  |
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| 6. | Four thin sections of onion tissue were immersed in 5% sugar solution. The sections were left for 15 minutes then viewed under a microscope.The table below shows the percentage of cells plasmolysed in each section.
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A. | 44 | |
B. | 50 | |
C. | 54 | |
D. | 200 | ||
| 7. | A piece of potato was cut from a potato tuber and weighed. It was placed in pure water for one hour and then removed, dried and weighed again. Finally, it was placed in a concentrated sugar solution for an hour, removed, blotted dry and weighed again.Which line in the table records the results which would most likely be obtained? |
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| First Weighing | Second Weighing | Third Weighing | ||
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A. | 5g | 6g | 4g |
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B. | 5g | 4g | 6g |
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C. | 6g | 5g | 4g |
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D. | 5g | 4g | 3g |
| 8. | When animal cells are placed in a hypotonic solution they | |
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A. | remain unchanged |
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B. | burst |
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C. | become turgid |
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D. | become plasmolysed |
| 9. | Four thin sections of red cabbage tissue were immersed in a 5% sugar solution. The sections were left for 15 minutes then viewed under the microscope.The table shows the percentage of cells plasmolysed in each slide.
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A. | 22 | |
B. | 25 | |
C. | 27 | |
D. | 100 | ||
| 10. | Which structural feature is common to both plant and animal cells? | |
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A. | Cell wall |
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B. | Chloroplast |
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C. | Nucleus |
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D. | Large central vacuole |
| 11. | What does a plant cell contain that an animal cell does not? | |
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A. | cytoplasm |
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B. | nucelus |
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C. | cell wall |
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D. | cell membrane |
| 12. | Both animal and plant cells usually have a | |
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A. | nucleus, cell membrane and cytoplasm |
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B. | nucleus, cell wall and chloroplasts |
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C. | nucleus, vacuole and cell wall |
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D. | nucleus, cell wall and cytoplasm |
| 13. | An important feature of the nucleus is that it | |
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A. | is full of water |
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B. | has a round shape |
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C. | contains information |
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D. | makes a thin barrier |
| 14. | The diagram below shows the appearance of a plant cell which had been placed in an isotonic solution.Which of the following diagrams best illustrates the cell after being immersed in a hypertonic solution?
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A. |
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B. |
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C. |
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D. |
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| 15. | Visking tubing is selectively permeable. In the experiment shown below to demonstrate osmosis, the following results were obtained. Initial mass of visking tubing plus contents = 10.0g Mass of visking tubing plus contents after experiment = 8.2g. The results shown would be obtained when
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A. | R is 10% salt solution and S is water | |
B. | R is 5% salt solution and S is water | ||
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C. | R is 10% salt solution and S is a 5% salt solution | |
D. | R is 5% salt solution and S is a 10% salt solution | ||
| 16. | When a plant cell is immersed in a hypertonic solution it will | |
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A. | burst |
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B. | become turgid |
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C. | become flaccid |
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D. | shrink |
| 17. | When an animal cell is immersed in a hypertonic solution it will | |
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A. | become flaccid |
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B. | burst |
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C. | become turgid |
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D. | shrink |
| 18. | Red blood cells have a solute concentration of around 0.9%. What will happen to these cells when immersed in a 1% salt solution? | |
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A. | The cells will swell but not burst |
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B. | The cells will shrink |
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C. | The cells will remain unaffected |
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D. | The cells will burst |
| 19. | When an plant cell is immersed in a hypotonic solution it will | |
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A. | become flaccid |
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B. | become turgid |
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C. | shrink |
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D. | burst |
| 20. | Some peeled pieces of apple were placed in distilled water and some in very salty water.The cells in the apple pieces will — | |
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A. | lose water in both solutions |
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B. | gain water in both solutions |
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C. | lose water in the distilled water and gain water in the salty water |
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D. | gain water in the distilled water and lose water in the salty water |
