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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: (1) 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: (1) Proximal convoluted tubule of nephron. Solution: Cuboidal epithelium consists of cube-like cells and commonly lines ducts of glands and kidney tubules; where active reabsorption occurs it bears a brush border of microvilli to increase surface area. This brush-bordered cuboidal epithelium is characteristically present in the proximal convoluted tubule (PCT) of the nephron. The Eustachian tube, salivary-gland ducts and intestinal lining are lined by other epithelia (the intestine has columnar epithelium), so (1) is correct. NCERT (Class XI, Structural Organisation in Animals — Animal Tissues, pre-2023 rationalisation text): epithelial tissue — simple cuboidal epithelium.

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