Water-soluble vitamins - B complex US Medical PG Flashcards - Medical Study Cards
Master Water-soluble vitamins - B complex with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Water-soluble vitamins - B complex Flashcard Deck - 10 Cards
Flashcard 1: Vitamin B12 deficiency is characterized by _____ serum methylmalonic acid
Answer: increased
Flashcard 2: What vitamin is derived from the amino acid tryptophan?_____
Answer: Vitamin B3 (niacin)
Flashcard 3: Vitamin B9 (folate) deficiency is characterized by _____ methylmalonic acid levels
Answer: normal
Flashcard 4: What vitamin acts as a cofactor for aminotransferase enzymes? _____
Answer: B6 (Pyridoxal phosphate)
Flashcard 5: What is the coenzyme (active) form of vitamin B1? _____
Answer: Thiamine pyrophosphate (TPP)
Flashcard 6: Vitamin B7 (biotin) is a cofactor for the enzyme _____ (fatty acid synthesis)
Answer: acetyl-CoA carboxylase
Flashcard 7: What vitamin deficiency may be caused by malignant carcinoid syndrome? _____
Answer: Niacin (B3) deficiency
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
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