Week 1 Flashcards
What is an alternative name for vitamin B1? What is the active form?
Thiamine
Thiamine pyrophosphate
What is the function of vitamin B1?
What can result from a vitamin B1 deficiency?
What is an alternative name for vitamin B2? What is the active form?
Riboflavin
FMN, FAD
What is the function of vitamin B2?
Electron transfer
Cofactor for some dehydrogenase enzymes
What can result from vitamin B2 deficiency?
What is an alternative name for vitamin B3? What is the active form?
Niacin, nicotinic acid
NAD+, NADP+
What is the function of vitamin B3?
What can result from a deficiency of vitamin B3
What toxicities can result from vitamin B3?
What is an alternative name for vitamin B5? What is the active form?
Pantothenic acid
Coenzyme A
What is the function of vitamin B5?
How common is a vitamin B5 deficiency?
Rare
Which water-soluble vitamin can be synthesized from tryptophan but not always in sufficient amounts?
Vitamin B3
What is an alternative name for vitamin B6? What is the active form?
Pyridoxine, pyridoxamine, pyridoxal
Pyridoxal phosphate
What is the function of vitamin B6?
A coenzyme for many enzymes, especially those involved with amino acid metabolism
What can cause vitamin B6 deficiency? What may result?
What can result from vitamin B6 toxicity?
Sensory neuropathy can occur at high doses
What is an alternative name for vitamin B7? What is the active form?
Biotin
Enzyme-bound biotin
What is the function of vitamin B7?
What is the result of vitamin B7 deficiency? How is it caused?
What is an alternative name for vitamin B9? What is the active form?
Folic acid
Tetrahydrofolate
What is the function of vitamin B9?
What can result from vitamin B9 deficiency?
Megaloblastic anemia
Neural tube defects
Excess amounts of what vitamin can mask a B12 deficiency?
vitamin B9
What is an alternative name for vitamin B12? What is the active form?
Cobalamin
Methycobalamin, deoxyadenosylcobalamin
What is the function of vitamin B12?
What is the result of vitamin B12 deficiency?
What is an alternative name for vitamin C? What is the active form?
Ascorbic acid (both)
What is the function of vitamin C?
What is the result of vitamin C deficiency?
Which vitamins are fat-soluble?
Vitamins A, D, E, and K
What are alternative names for vitamin A? What is the active form?
Retinol, Retinal, Retinoic acid, B-carotene (precursor to vitamin A)
Retinol, Retinal and Retinoic acid are all active forms
What is the function of vitamin A?
What can result from vitamin A deficiency?
What can result from vitamin A toxicity?
What are the alternative names for vitamin D?
What is the active form of vitamin D?
What is the function of vitamin D?
What can result from vitamin D deficiency?
What can result from vitamin D toxicity?
Is vitamin D a true vitamin?
No, it can be synthesized in skin from cholesterol precursors
What is an alternative name for vitamin E? What is the active form?
a-tocopherol
Several tocopherol derivatives
What is the function of vitamin E?
fat-soluble anti-oxidant
What can result from vitamin E deficiency?