Question

Assertion (A) Bone is the hardest tissue of the body.
Reason (R)Hardness of the bone is due to the calcification of its matrix.

• A. If both A and R are true and R is the correct explanation of A
• B. If both A and R are true, but R is not the correct explanation of A
• C. If A is true, but R is false
• D. If A is false, but R is true

Answer 1

Answer: (A)

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Bone is the hardest tissue in the body. Its hardness is due to the calcification of its matrix. It has hard and non-pliable ground substances rich in calcium salts and collagen fibres, which give strength to the bones.