Pneumatophores occur in
Answer: (C) Halophytes. Pneumatophores are negatively geotropic respiratory roots that grow vertically upward out of the soil/water to obtain oxygen.
- A.Carnivorous plants
- B.Free-floating hydrophytes
- C.Halophytes✓
- D.Submerged hydrophytes
Correct Answer
(C) Halophytes
Solution & Explanation
Pneumatophores are negatively geotropic respiratory roots that grow vertically upward out of the soil/water to obtain oxygen. They occur in halophytes such as mangroves (e.g., Rhizophora) growing in oxygen-poor, saline marshy soils, so the answer is halophytes. NCERT Reference: Ch 5, p.69, lines 23-24 — "The roots in some plants get modified for storage of food, mechanical support and respiration" (Note: this specific content was rationalised out of the 2026-27 NCERT reprint; grounded in pre-2023 NCERT text.) (Note: Answer (Halophytes) is correct, but the specific term 'pneumatophore' and the Rhizophora/mangrove example are NOT in the current reprint; the detailed root-modification examples were rationalised out, leaving only the general statement that some roots are modified for respiration.)