Primary metabolic bone disorder in scurvy is –: (A) Decreased mineralization, (B) Decreased osteoid matrix formation, (C) Increased bone resorption, (D) Decreased bone mass with normal mineralization and osteoid formation
Answer is B. Collagen is a component of osteoid (protein matrix).
Collagen synthesis is deficient in scurvy; therefore, osteoid formation is defective.
On the other hand, in rickets osteoid formation is noinial, but mineralization (Calcification) of osteoid is defective.