Plant Plasticity and Heterophylly — NEET Biology
✅ Asked in NEET 2026Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called plasticity, e.g., heterophylly in cotton, coriander and larkspur. In such plants, the leaves of the juvenile plant are different in shape from those in mature plants. On the other hand, difference in shapes of leaves produced in air and those produced in water in buttercup also represent the heterophyllous development due to environment. This phenomenon of heterophylly is an example of plasticity.
Plasticity is the plant's ability to produce structurally different organs in response to environmental conditions or developmental stages. NTA tests this by asking why leaves differ in juvenile vs. mature plants, or why water leaves differ from air leaves in buttercup. Students commonly confuse plasticity with adaptation (which is evolutionary) or mistake heterophylly as a genetic trait only—but it's a developmental response to environment. Remember: plasticity = reversible structural changes within one plant's lifetime due to external factors or growth phases. Heterophylly is the clearest example, making it a high-probability NEET question for both definition and application.
This paragraph was tested 4 times in NEET.
Heterophyllous development in response to environment is an example of which phenomenon?
The ability of plants to follow different pathways in response to environment leading to formation of different kinds of structures is called (NEET 2022 Phase 2)
Which one of the following plants does not show plasticity? (NEET 2022 Phase 1)
Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called: (NEET 2021)
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.