Organisms And Population Question 119
Question: Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : In mammals, liver and kidneys have high power of restorative regeneration. Reason : Liver decreases in size than the normal size when a part of liver is removed.
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: C
Solution:
In fishes, birds, and mammals, regeneration power is very restricted.
In fishes, only part of fins can be regenerated; only part of the beak can be regenerated in birds, while mammals can show only tissue regeneration, which is equivalent to wound healing.
But the liver and kidney of mammals have very high repairative regeneration.
Maximum repairative regeneration is found in the liver of mammals.
If a part of liver is surgically removed, then the cells of remaining part undergo repeated maintenance.
BETA
