NEET 2017 · BiologyRoot typesPrevious Year Question
Root hairs develop from the region of
Answer: (A) Maturation. The root tip has four zones: root cap, region of meristematic activity, region of elongation, and region of maturation.
- A.Maturation✓
- B.Elongation
- C.Root cap
- D.Meristematic activity
Correct Answer
(A) Maturation
Solution & Explanation
The root tip has four zones: root cap, region of meristematic activity, region of elongation, and region of maturation. Root hairs are formed by some epidermal cells of the region of maturation (the differentiated, mature zone), and these hairs absorb water and minerals from the soil. NCERT Reference: Ch 5, p.59, lines 18-22 — "called the region of maturation. From this region some of the epidermal cells form very fine and delicate, thread-like structures called root hairs"
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