Which is the least toxic of the fat-soluble vitamins?
a. A
b. E
c. K
d. D2
e. D3
Answer: B
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Which of the following is the primary function of ascorbic acid?
A. It is required for the conversion of homocysteine to methionine. B. It participates in the regulation of gene expression. C. It is required for the transport and metabolism of fat and cholesterol. D. It acts as an antioxidant and is required for collagen synthesis. E. It is required for normal red blood cell formation.
The development of facial and heart abnormalities in the fetus has been linked to _____ by the mother.
A. excessive vitamin A intake B. decreased intake of iodine C. excessive protein intake D. increased energy expenditure E. a decreased folate intake
Wheat flours are classified according to their
A. carbohydrate content. B. carbohydrate or lipid content. C. protein or mineral content. D. protein or water content.
Which lipoprotein transports cholesterol in the blood to cells?
a. Low-density lipoprotein (LDL) b. Intermediate-density lipoprotein (IDL) c. High-density lipoprotein (HDL) d. Very-low-density lipoprotein (VLDL)