Explain why cell walls are important for plant cells.
Answer
Cell walls provide structural support, maintain cell shape, limit water intake, and protect against pathogens.
The correct answer is Cell walls provide structural support, maintain cell shape, limit water intake, and protect against pathogens. — Mention that walls act as a physical barrier against pathogens.
Step-by-step solution
- Recognise that plant cells have rigid cell walls made of cellulose.
- Explain that rigidity gives mechanical support and prevents cells from collapsing.
- Discuss that cell walls maintain cell shape and organ structure.
- Explain that they limit excessive water uptake, helping to regulate turgor pressure.
- Mention that walls act as a physical barrier against pathogens.
Common mistake: Thinking cell wall is only for support, ignoring its other roles
Concept tested: Function of plant cell walls
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