CIE A Level Biology (9700) 2019-2021

Revision Notes

7.2.7 Xerophytic Plant Leaf Adaptations

Xerophytic Plant Leaf Adaptations

  • Xerophytes (from the Greek xero for ‘dry’) are plants that are adapted to dry and arid conditions
  • Xerophytes have physiological and structural (xeromorphic) adaptations to maximise water conservation

Xeromorphic features table

Xeromorphic features table, downloadable AS & A Level Biology revision notes Table 25_ Xeromorphic features 2

Xerophytic plant leaf adaptations, downloadable AS & A Level Biology revision notes

Photomicrograph and annotated drawing showing the xeromorphic features of a leaf of Ammophilia arenaria (Marram grass)

Exam Tip

Remember not all leaves will have every feature listed above so if you are looking at an unfamiliar image consider whether the adaptations you can see will help reduce water being lost from the leaf.

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Cate has over 20 years’ experience teaching Biology to IGCSE, IB and A-level students in seven different countries across Asia, Europe, North America and the Middle East. This has given her a fine appreciation of different cultures, places and teaching methods. Cate has a keen interest in producing Biology revision resources that will help students engage with the subject.
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