Structural Organisation In Animals Question 27

Question: Assertion : Fibroblasts help in protection. Reason : Fibroblasts synthesize two kinds of protein which are protective in nature.

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:

Fibroblasts are the principal cells of areolar tissue.

Fibroblasts synthesize two kinds of proteins-collagen and elastin.

The tensile strength of collagen fibres and the elasticity fibres prevent displacement and injury of tissues and organs under mechanical stress.

Collagen fibres are also laid down at sites of injury and help in tissue repair.