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11 . Water soluble vitamin include
A. niacin B. vitamin C
C. riboflavin D. all of the above

12 . The symptoms of retinol excess are
A. nausea B. weakness
C. bone fragility D. all of these

13 . Main function of insulin hormone is to
A. increase blood sugar
B. decrease blood sugar
C. increase glycogen in liver
D. decrease glycogen in liver

14 . Ascorbic acid acts as an
A. oxidizing agent
B. reducing agent
C. oxidizing and reducing agent both
D. none of the above

15 . A deficiency of thiamin produces the disease known as
A. scurvy B. anemia
C. cataract D. beri-beri