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NEET 2020 · BiologyPrevious Year Question

Cuboidal epithelium with brush border of microvilli is found in:

Answer: (A) Proximal convoluted tubule of nephron. Answer: (A) Proximal convoluted tubule of nephron.

  1. A.Proximal convoluted tubule of nephron✓
  2. B.Eustachian tube
  3. C.Lining of intestine
  4. D.Ducts of salivary glands

Correct Answer

(A) Proximal convoluted tubule of nephron

Solution & Explanation

Answer: (A) Proximal convoluted tubule of nephron. Solution: NCERT states that the PCT is lined by simple cuboidal brush border epithelium, and this brush border (microvilli) increases the surface area available for reabsorption. The other options do not have this brush-bordered cuboidal lining — the intestine has columnar epithelium, while the Eustachian tube and salivary gland ducts are not described with a microvillar brush border in this context. Hence the cuboidal epithelium with a brush border of microvilli is characteristic of the PCT. NCERT Reference: Ch 16, p.209, line(s) 28-29 — "PCT is lined by simple cuboidal brush border epithelium which increases the surface area for reabsorption."

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