Question

11. In humans, epithelium that plays limited role in
absorption, diffusion and secretion is likely to be
found in/at
[NCERT Pg. 102
(1) Small intestine
(2) Trachea
(3) Fallopian tube
(4) Buccal cavity​

Answer 1

Explanation:

The function of following epithelium is not secretion and absorption

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ANSWER

1. Simple cuboidal epithelium is found in the lining of ducts of glands and tubular part of nephrons. It is involved in secretion and absorption.

2. Simple columnar epithelium is found in the lining of stomach and intestine and also helps in absorption and secretion.

3. Simple squamous epithelium is found in the walls of blood vessels and air sac of lungs and is involved in functions like forming a diffusion boundary.

So, the correct option is 'Simple squamous epithelium'.

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Answer 2

Answer:

above answer is wrong

the correct answer is ---4)buccal cavity---

Explanation:

Compound epithelium is made of more than one layer (multi-layered) of cells and thus has a limited role in secretion and absorption, compound epithelium provides protection from chemical and mechanical stresses. Small intestine have simple columnar epithelium, Trachea have pseudostratified ciliated columnar epithelium, fallopian tubes have simple ciliated columnar epithelium. Question is asking about compound epithelium as it have limited role in secretion and absorption. Compound epithelium cover the dry surface of the skin, the moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and of pancreatic ducts. Thus the answer is option (4), buccal cavity