Metabolism — Flashcards

Achlorhydria can cause a vitamin B12 deficiency by preventing release of B12 from _____

Collagen Synthesis: Hydroxylation of selected prolines and lysines during collagen synthesis requires vitamin _____

PTH stimulates the renal enzyme _____, which converts 25-hydroxycholecalciferol to the active form, 1,25-dihydroxycholecalciferol (vitamin D)

Vitamin B12 (cobalamin) deficiency is characterized by _____ homocysteine levels

Vitamin B7 (biotin) is a cofactor for the enzyme _____ (propionyl CoA metabolism)

What vitamin is used as a cofactor for synthesis of cystathionine, heme, histamine, and neurotransmitters?_____

One cause of vitamin B12 deficiency is insufficient intake, which may occur with _____ diets

Vitamin E primarily functions as an _____; protects RBCs and membranes from free radical damage

Vitamin D2 is obtained via _____.

If the Y-intercept increases on a lineweaver-burke plot, the Vmax has _____