Author: Anonymous

Vitamin A deficiency can be caused by a zinc deficiency.

A protein secreted by the stomach that binds to vitamin B12 once the vitamin is in the small intestine.

Vitamin D and what hormone act during low levels of blood calcium to promote the resorption of calcium from bone to blood?

What vitamin is necessary to convert cholesterol into bile acids?

The RDA is increased for folate when a woman becomes pregnant.

Most of the known carotenoids can be converted into retinol.

The appearance of a rachitic rosary is symptomatic of a deficiency of what vitamin?

Name the person who won the 1964 Noble Prize in Chemistry for determining the 3-dimensional structure of vitamin B12 using X-ray crystallography?

The various forms of cobalamin cannot be interconverted. As a result, the active coenzyme forms of cobalamin must be consumed directly in the diet.

Vitamin C is necessary for both the synthesis and catabolism of tyrosine.