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Columnar Epithelial Cell

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Question

Read the following (A-D) statements.
A - It is composed of single layer of tall and slender cells
B - Their nuclei are located at the base
C - Free surface may have microvilli
D - They are found in the walls of blood vessels and air sac of lungs

How many of the above statement(s) is/are incorrect for simple columnar epithelium?

A

Four

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B

Three

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C

Two

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D

One

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Solution

The correct option is D One
The columnar epithelium is composed of a single layer of tall and slender cells. Their nuclei are located at the base. Free surface may have microvilli. They are found in the lining of stomach and intestine and help in secretion and absorption.

The walls of blood vessels and air sac of lungs are composed of simple squamous epithelium.

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Similar questions

Which of the following statements is/are false about columnar epithelium -

(i) It is made of tall and slender cells.
(ii) The free surface may have microvilli.
(iii) They are found in the stomach and intestine and help in secretion and absorption.
(iv) Ciliated epithelium is mainly present in hollow structures like bronchioles and Fallopian tubes.
(v) They have apical nuclei.

Q. Assertion: The squamous epithelium is made of a single thin layer of flattened cells with irregular boundaries.

Reason: They are found in walls of blood vessels and air sacs of wings.

(i) (a) is made of single thin layer of flattened cells with regular boundaries.
(ii) (b) is commanly found in ducts of glands & nephrons.
(iii) (a) is found in walls of blood vessels and air sacs of heart and are involved in a function like diffusion boundaries
(iv) Both (a) & (b) are included under simple
epithelium.

Choose the option with correct statement

Q. Read the given statements and choose correct answer :-
(i) Initial bronchioles are supported by incomplete cartilagenous rings.
(ii) In human lungs are solid and spongy.
(iii) Alveoli wall contains simple squamous epithelium and white fibrous connective tissue (iv) Lungs are covered by a single layered pleura

Q. Select the correct option:

Given below are four statements (i)- (iv) each with two blanks. Select the option which correctly fills up the blanks in any two of these statements.
(i) The columnar epithelium is composed of ________ (1) and slender cells. Their ______ (2) are located at the base.
(ii) Collagen fibres provide ______ (3) and elastin fibres provide _______ (4) and elasticity to the tissue.
(iii) Adipose tissue is a ______ (5) type of connective tissue located mainly beneath ______ (6).
(iv) Tendons attach _____ (7) to bones and ligaments attach _______ (8) to bones.

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