Describe four ways in which a plant cell differs from an animal cell in terms of its structure.
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Model answer (4 marks)
1. Plant cells have a rigid cell wall made of cellulose, whereas animal cells lack a cell wall.
2. Plant cells contain a large, permanent central vacuole, while animal cells either have no vacuole or only small, temporary ones.
3. Plant cells possess chloroplasts for photosynthesis; animal cells do not.
4. Plant cells are usually larger and have a more regular, rectangular shape compared with the irregular, smaller animal cells.
2. Plant cells contain a large, permanent central vacuole, while animal cells either have no vacuole or only small, temporary ones.
3. Plant cells possess chloroplasts for photosynthesis; animal cells do not.
4. Plant cells are usually larger and have a more regular, rectangular shape compared with the irregular, smaller animal cells.
Examiner tips
- Use the exact terms: cell wall, permanent vacuole, chloroplasts, regular shape. Include the comparison for each point. Keep each point short and to the point to fit the 4 marks.
Common mistakes
- Confusing the size of the vacuole with the presence of a vacuole. Using 'cell membrane' instead of 'cell wall'. Omitting the shape difference or describing it vaguely.
Mark scheme (4 marks)
- Plant cells have a cell wall; animal cells do not
- Plant cells have a permanent vacuole; animal cells do not (or only have temporary vacuoles)
- Plant cells contain chloroplasts; animal cells do not
- Plant cells have a more regular shape and are larger than animal cells
Related
- All Cambridge International IGCSE Biology (0610) revision notes →
- How to answer a "Describe" question →
- Decode the mark scheme abbreviations →
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