Vitamins
Proteins are linear polymers of amino acids, They fold into compact structures Sometimes these folded structures associate to form homo or hetero dimers Which one of the following refers to this associated form ?
Molecular aggregation
Denatured state
Precipitation
Quaternary structure
Quaternary structure
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Cytochromes are_____________?A. Riboflavin containing nucleotides
B. Pyridine nucleotides
C. Metal containing flavoproteins
D. Iron-porphyrin proteins
Thyroxine and catecholamines are derived from_____________?
A. Tyrosine
B. Alanine
C. Tryptophan
D. Leucine
Who is known for his work on scurvy ?
A. John snow
B. James lind
C. Fracastorius
D. Edward Jenner
Aniacinosis results in______________?
A. Beri beri
B. Perleche
C. Pellagra
D. Nyctalopia
Vitamin K____________?
A. Helps in formation of prothrombin
B. Prevention of capillary fragility
C. Inhibition of antithrombin
D. Stimulation of hematopoiesis in red bone marrow
Key enzyme in urea synthesis is____________?
A. Arginase
B. Carbamyl synthetase
C. Urease
D. Ornithine
Angular cheilosis is frequently associated with deficiency of______________?
A. Niacin
B. Riboflavin
C. Thiamine
D. Folic acid
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