Structural Organisation In Animals Question 78
Question: Assertion : Columnar epithelium lining the intestinal mucosa appears to have a brush like appearance. Reason : A large number of microvilli are present on brush bordered columnar epithelium.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: A
Solution:
Columnar epithelium is a type of simple epithelium characterised by the presence of tall column like cells.
Its major function is absorption or secretion.
It covers the inner surface of the intestine, stomach and gall bladder.
In the intestine it appears to have a brush like appearance on the free surface, which is due to the presence of large number of microvilli.
Function of microvilli is to enhance absorption.
Due to the presence of microvilli, the epithelium is also called as brush bordered columnar epithelium.
BETA
