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Human Body & Health

What distinguishes the impaired collagen synthesis in scurvy from that in genetic collagen disorders such as Ehlers-Danlos syndrome?

A)Differing prolyl hydroxylase enzyme specificity
B)Varied tropocollagen primary sequence errors
C)Different disruption to lysyl oxidase activity
D)Impaired post-translational hydroxylation reaction

💡 Explanation

Scurvy results from vitamin C deficiency, leading to impaired collagen hydroxylation by prolyl hydroxylase and lysyl hydroxylase. This post-translational modification is crucial for proper collagen crosslinking and stability because genetic disorders involve mutations directly affecting collagen genes, rather than vitamin-dependent enzyme activity; therefore, impaired hydroxylation distinguishes scurvy.

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