Bone is composed of
Correct answer: C. Collagen and calcium phosphate
- A. Only collagen
- B. Only calcium phosphate
- C. Collagen and calcium phosphate
- D. Cartilage only
Explanation
Bone contains organic collagen (flexibility) and inorganic calcium phosphate/hydroxyapatite (hardness).
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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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