Severe folate deficiency is rare in the U.S. because
A. folate is required to be added to enriched grain products.
B. Americans consume plenty of folate-rich vegetables.
C. folate is added to the water supply.
D. an adequate amount of folate is made by bacteria residing in the large intestine.
Q. 2Vitamin B6 deficiency can result in microcytic, hypochromic anemia because the vitamin is essential for _____ synthesis.
A. cholesterol
B. bone
C. heme
D. serotonin
Q. 3Vitamin B6 deficiency can be difficult to distinguish from _____ deficiency, because both deficiency states result in cheilosis, glossitis, and stomatitis.
A. thiamin
B. biotin
C. pantothenic acid
D. riboflavin
Q. 4Reduction-oxidation (redox) reactions are critical in the production of ATP. Vitamins required for redox reactions include
A. riboflavin and thiamin.
B. pantothenic acid and biotin.
C. thiamin and niacin.
D. riboflavin and niacin.
Q. 5The conditions of cheilosis, stomatitis, and glossitis are all associated with inflammation of the
A. throat.
B. eyes.
C. mouth.
D. stomach.
Q. 6Alcoholism is an important risk factor for thiamin deficiency because
A. alcohol inhibits thiamin absorption.
B. alcoholics tend to consume diets that contain adequate calories and a variety of foods, but they are low in thiamin content.
C. thiamin causes gastrointestinal distress when consumed with alcohol.
Q. 7Thiamin, like other B vitamins, plays an important role in the cell because
A. it is necessary for the degradation of ATP.
B. it is lipid soluble and therefore can reside in the cell membrane.
C. it serves as an enzyme in important chemical reactions.
D. it serves as a coenzyme in important chemical reactions.
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