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NEET 2018 · BiologyPrevious Year Question

Sweet potato is a modified

Answer: (B) Adventitious root. Sweet potato is a tuberous adventitious root modified for the storage of reserve food.

  1. A.Tap root
  2. B.Adventitious root✓
  3. C.Stem
  4. D.Rhizome

Correct Answer

(B) Adventitious root

Solution & Explanation

Sweet potato is a tuberous adventitious root modified for the storage of reserve food. It is not a tap root (which arises from the radicle) and not a stem/rhizome, so the answer is adventitious root. 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 (Adventitious root) is correct, but the specific example 'sweet potato = modified adventitious root for storage' is NOT in the current reprint; the detailed root-modification examples were rationalised out. Only the general storage-modification statement remains.)

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