Flashcards in Biochemistry/Nutrition Deck (417)
What is vitamin B1? What is the main molecule where vitamin B1 is found?
What is vitamin B2? What are the main two molecules that vitamin B2 is found?
FAD and FMN
What is vitamin B5? What is the main molecule where vitamin B5 is found?
What is vitamin B6? What is the main molecule where vitamin B6 is found? What type of enzymatic rxn is B6 involved in?
What is vitamin B7?
What is vitamin B9?
What is vitamin B12?
What is another name for vitamin A?
What vitamin is necessary for differentiation of epithelial tissues?
Deficiency of what vitamin can cause corneal degeneration?
What type of enzyme is vitamin B1 needed for?
What are four dehydrogenases vitamin B1 is necessary for?
1. α-ketoglutarate dehydrogenase
4. branched-chain ketoacid dehydrogenase
Wernicke-Korsakoff affects what two structures in the brain?
Medial Dorsal Nucleus of Thalamus
B1 deficiency impairs the breakdown of what metabolic product?
What two tissues are affected first by Wernicke-Korsakoff Syndrome?
brain and heart
How are WK and Beriberi diagnosed?
increased transketolase activity of RBCs after B1 infusion
What are two signs of vitamin B2 deficiency?
Cheliosis and Corneal vascularization
What type of reaction is B2 used in?
What B vitamin is derived from tryptophan?
The synthesis of niacin requires what two B vitamins?
B2 and B6
What B vitamin can be used to treat dyslipidemia? What is raised and lowered?
VLDL = lowered
HDL = raised
What amino acid is not absorbed in Hartnup disease? What B vitamin is administered to relieve the effects?
Deficiency of what two products can lead to pellagra?
Niacin or Tryptophan
Malignant carcinoid consumes what amino acid in excess?
A carcinoid tumor is derived from what type of cell? Where do most carcinoid tumors arise?
What neurotransmitter do carcinoid tumors release? What amino acid is this neurotransmitter derived from?
serotonin derived from Trp
Deficiency of what vitamin can lead to adrenal insufficiency?
What three type of reactions is vitamin B6 used for?
Name a common food with a large supply of avidin? What B vitamin can this cause a decrease i?
raw egg whites