Key term for OCR GCSE Biology B, used in Plant Transport.
Specialized cells surrounding each stoma that control its opening and closing by becoming turgid (open) or flaccid (closed).
Guard cells appears in OCR GCSE Biology B revision content for Ecosystems and Photosynthesis, especially Plant Transport and Environmental Factors.
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Ecosystems and Photosynthesis
Plant Transport • Transpiration and Translocation
