Question

the production of vitamin ____ in the skin requires exposure to uv radiation. the vitamin then plays a role in the absorption and availability of ____, which is necessary for bone matrix formation.

o b; potassium
o a; phosphate
o d; calcium
o c; chloride

Explanation:

Vitamin D is synthesized in the skin upon exposure to UV radiation. It helps in the absorption and availability of calcium which is crucial for bone - matrix formation.

Answer:

C. D; calcium