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← Human Body & HealthWhy does bone fragility increase in untreated scurvy?
A)Calcium absorption is directly inhibited
B)Osteoclast activity becomes constitutively enhanced
C)Parathyroid hormone release becomes upregulated
D)Collagen synthesis becomes critically impaired✓
💡 Explanation
In scurvy, vitamin C deficiency impairs prolyl hydroxylase, an enzyme essential for collagen synthesis. Without functional collagen, bone matrix formation decreases, because collagen provides the structural framework; therefore, bone fragility increases rather than calcium absorption being directly affected or osteoclast overactivation.
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