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.

Options

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

Answer

a

Explanation

Bane is hard as its matrix has an inflexible meterial the ossein. Matrix of the bone also contains calcium and magnesium salt which also add in building rigidity of the tissue. Cartilage is soft and pliable as its matrix has a flexible material, the chondrin. Matrix of the cartilage chiefly consists of chondroitin sulphate, that is capable of withstanding considerable pressure.