Question 1
Potato cylinders were left in sucrose solutions of different concentrations for two hours. The graph shows the percentage change in their mass. Which solution has the same water concentration as the potato cells?
National 5 Biology, every key area.
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Seven sections, one paper
Cells, membranes and DNA
Cell biology, key areas 1 to 3
Proteins, genetic engineering and respiration
Cell biology, key areas 4 to 6
New cells, nerves and hormones
Multicellular organisms, key areas 1 and 2
Reproduction and inheritance
Multicellular organisms, key areas 3 and 4
Transport and absorption
Multicellular organisms, key areas 5 to 7
Ecosystems and sampling
Life on Earth, key areas 1 and 2
Photosynthesis, food and evolution
Life on Earth, key areas 3 to 6
| Part | Time | Marks |
|---|---|---|
| Question paper, Section 1 | Part of 2 hours | 20 marks |
| Question paper, Section 2 | Part of 2 hours | 60 marks |
| Assignment | 8 hours, 1 hour 30 minutes to write up | 20 marks |
The exam: Wednesday 12 May 2027, from 13:00 to 15:00.
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