CIE AS Biology

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First teaching 2020

Last exams 2024

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7.2.4 Xerophytic Plant Leaf Adaptations

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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 notesTable 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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