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The presence of what makes the matrix of bones hard?

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in Biology – Class 11 by (272k points)
The presence of what makes the matrix of bones hard?

(a) Phosphate salts

(b) Chondroitin salts

(c) Calcium salts

(d) Sodium salts

The question was asked in an interview.

This interesting question is from Locomotion & Movement topic in division Locomotion and Movement of Biology – Class 11

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The correct option is (c) Calcium salts

Explanation: The bones and cartilages that make up our skeletal system are specialised connective tissues. The matrix of bones is hard due to the presence of calcium salts, while that of cartilage is slightly pliable.

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