JMU NUTRITION 280 THEIMER FINAL EXAM WITH
CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY GRADED A+ 2026
Food groups that lack B12? ......ANSWER......Grains, vegetables, fruits
Food groups low in vitamin C? ......ANSWER......Grains, dairy, protein
Vitamin absorption occurs mainly in ......ANSWER......the small intestine
Compound that's the basis for the RDA for vitamin E?
......ANSWER......Alpha-tocopherol because it's the only form of vitamin
E that can be used by the body
Absorption of water-soluble vitamins ......ANSWER......transport system -
> directly into blood
Absorption of fat-soluble vitamins ......ANSWER......micelles ->
chylomicrons -> lymph -> blood
All B vitamins ......ANSWER......act as coenzymes
Antioxidant vitamins? ......ANSWER......Provitamin A (inactive), C, E
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B vitamins ......ANSWER......do NOT directly provide energy
a deficiency affects every cell in the body
Thiamin ......ANSWER......helps breakdown glucose for energy
needed to convert pyruvate into acetyl-CoA
needed for synthesis of NTs and ribose+deoxyribose
Beriberi ......ANSWER......the thiamin-deficiency disease; characterized
by loss of sensation in the hands and feet, muscular weakness,
advancing paralysis, and abnormal heart action
Riboflavin ......ANSWER......supports vision and skin health
helps other B vitamins to convert to active forms
part of ATP making coenzymes
Vitamin C is also known as ......ANSWER......ascorbic acid
Vitamin C helps in the absorption of ......ANSWER......iron, calcium,
folate
Vitamin C deficiency ......ANSWER......Scurvy
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Choline ......ANSWER......not a vitamin
it's a water soluble substance
essential nutrient
needed to make ACH
Fat soluble vitamin A types ......ANSWER......Retinoids and carotenoids
Retinoids ......ANSWER......pre-formed, active vitamin A
found in animals foods
more readily absorbed
Carotenoids ......ANSWER......found in plant foods
natural pigments
can either end up active or remaining a precursor
Beta-carotene ......ANSWER......most potent vitamin A precursor
Vitamin A is stored in the ......ANSWER......liver
Vitamin A functions ......ANSWER......gene expression and cell
differentiation
vision