Why are leaves modified in some plants? Write any two modifications of leaves.
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Solution:
Reason for Modification: Leaves modify to perform functions other than photosynthesis to adapt to environmental conditions.
Two Modifications:
- Leaf Tendrils:
- Leaves/leaflets modified into coiled, thread-like structures
- Function: Support for climbing
- Example: Garden pea (Pisum sativum)
- Spines:
- Leaves modified into sharp, pointed structures
- Function: Reduce transpiration, protection from herbivores
- Example: Cactus (Opuntia), Acacia
Other Modifications:
- Storage: Onion (fleshy scales), Aloe
- Insectivory: Pitcher (Nepenthes), Venus flytrap
- Photosynthesis: Phyllode in Acacia
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