Vitamin cofactor functions in metabolism — Flashcards

Flashcard 1: What vitamin is derived from the amino acid tryptophan?_____

Answer: Vitamin B3 (niacin)

Flashcard 2: Vitamin B3 (niacin) is involved in many _____ reactions

Answer: redox

Flashcard 3: Vitamin B2 (riboflavin) is involved in many _____ reactions

Answer: redox

Flashcard 4: Vitamin B9 (folate) deficiency is characterized by _____ methylmalonic acid levels

Answer: normal

Flashcard 5: Thiamine pyrophosphate (B1) is a cofactor for the enzyme _____ (amino acid metabolism)

Answer: branched-chain ketoacid dehydrogenase

Flashcard 6: What mineral deficiency is associated with acrodermatitis enteropathica? _____

Answer: Zinc deficiency

Flashcard 7: What vitamin is used as a cofactor for transamination, decarboxylation reactions, and glycogen phosphorylase?_____

Answer: B6 (pyridoxal phosphate)

Flashcard 8: vitamin B2 (riboflavin)

Answer: component of FADH2, cofactor in redox

Extra: angular chelitis

Flashcard 9: vitamin B3 (niacin)

Answer: component of NAD+, NADP+, cofactor in redox

Extra: 

Flashcard 10: What precursors and cofactors are needed to make vitamin B3 (niacin)?

Answer: derived from tryptophan, vitamin B6 (pyridoxine) acts as cofactor