Question

Assertion :Bone has very hard matrix whereas cartilage has pliable matrix. Reason: Bone has calcium salts in its matrix whereas cartilage has chondroitin salts in its matrix.

• A. If both assertion and reason are true and reason is the correct explanation of assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of assertion.
• C. If assertion Is true but reason is false.
• D. If both assertion and reason are false.

Answer 1

The correct option is A If both assertion and reason are true and reason is the correct explanation of assertion.

Cartilage is a solid but semi-rigid and flexible connective tissue. Cartilage is a non-vascular connective tissue, consisting of cells embedded in a matrix of chondrin.

Bone is highly calcified, hard and rigid connective tissue. It is the major component of adult vertebra and endoskeleton. Besides its mechanical function of supporting the body architecture and internal organs as a framework, of protecting delicate organs like brain, heart etc, of forming muscles to facilitate movement and locomotion, the bone is also metabolically dynamic tissue which functions as a homeostatic reservoir of ions of calcium, magnesium, phosphorus etc.

So, the correct option is 'If both assertion and reason are true and the reason is the correct explanation of assertion.'