Question detail
How do cellulose cell walls contribute to a plant's defense against pathogens?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Plant disease (biology only)
Question
- A. By absorbing water
- B. By providing a physical barrier
- C. By producing toxins
- D. By facilitating gas exchange
Answer
The correct option is By providing a physical barrier because it matches the approved biology in Plant defence responses within Plant disease (biology only).
Explanation
The correct option is By providing a physical barrier because it stays accurate for Plant defence responses in Plant disease (biology only). It matches the approved learning objective about explain how cellulose cell walls resist invasion by microorganisms and avoids the oversimplified distractors.
Common mistake
Misunderstanding Cellulose Function
Students often think that cellulose cell walls completely prevent all microorganisms from entering the plant.
Clarify that while cellulose cell walls provide a strong barrier, they primarily help resist invasion by making it difficult for microorganisms to penetrate, rather than completely blocking them.
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