Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← 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.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Human Body & Health →- Why does chronic inflammation persist even when initial triggers subside, specifically concerning the prostaglandin pathway?
- If a patient's pulmonary capillaries develop significantly increased interstitial fluid pressure due to left ventricular heart failure, which consequence follows regarding gas exchange in the alveoli?
- Which outcome occurs when asymmetric division creates unequal placental segments?
- Why does allogeneic hematopoietic stem cell transplantation, following myeloablative conditioning, represent a curative treatment for patients with severe aplastic anemia?
- During prolonged exertion in a hot environment, what causes heat stroke despite the activation of sweating and vasodilation?
- Why does renal tubule obstruction caused by kidney stones containing calcium oxalate crystals typically lead to hydronephrosis?
