Vitamin B-2 or Riboflavin: Chemistry, Functions and Disorders
When riboflavin is exposed to ultraviolet rays, it is converted into:
Lumifllavin
Lactoflavine
Ovoflavin
Sulfatide
Lumifllavin
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Enzymes that uses ‘Flavin coenzymes’ are termed as:A. Globular enzymes
B. Active enzymes
C. Lipoenzymes
D. All of above
Yellow fluorescence is exhibited by riboflavin, named as:
A. Lumifllavin
B. Lactoflavine
C. Ovoflavin
D. Lecithin
Deficiencies of riboflavin, included:
A. Dermatitis
B. Cheilosis
C. Glossitis
D. All of above
Moderate sources of riboflavin, included:
A. Fruits
B. Cereals
C. Both A and B
D. Vegetables
‘antimetabolite’ of riboflavin, included:
A. Ascorbic acid
B. Lactoflavin
C. Ovoflavin
D. All of above
Molybdenum and iron are attached to flavoprotein, such metal activity is known as:
A. Metal activated enzymes
B. Metalloflavoproteins
C. Metal parts
D. Metal calcium
Riboflavin’ is heat stable, but, sensitive to:
A. Pressure
B. Light
C. Temperature
D. Atmosphere
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