Easy

The hardness of bone is due to the deposition of

Correct answer: A. salts of calcium, such as calcium phosphate

  • A. salts of calcium, such as calcium phosphate
  • B. silica particles
  • C. sodium chloride crystals
  • D. chitin fibres

Explanation

Bone combines a flexible framework of collagen with hard calcium salts, giving both strength and a little spring. Without the mineral component bone would bend, and without collagen it would shatter, which is why both parts matter.

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About Human Skeleton

The human skeleton provides support, protects organs, enables movement with muscles and stores minerals while bone marrow produces blood cells. Questions cover the axial and appendicular skeleton, types of bones and joints, cartilage, ligaments and tendons, and the difference between fixed, slightly movable and freely movable joints.

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