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.Management Sciences
Category: Vitamins
The amino acid from which niacin is synthesized is______________?
A. Tyrosine
B. Theronine
C. Tryptophan
D. Histidine
False statement about haemoglobin structure________________?
A. Hb has 2 polypeptide chains
B. Iron is present in ferrous state
C. Hb structurally similar to myoglobin
D. Ferrous ions are in porphyrin rings
Which one of the following amino acids is purely ketogenic ?
A. Proline
B. Phenylalanine
C. Isoleucine
D. Leucine
Which of the following is a derived a derived protein_____________?
A. Protamines
B. Peptones
C. Prolamines
D. Lactalbumin
Deficiency of which vitamin causes glossitis dementia roughed keratotic areas on skin and gastrointestinal symptoms ?
A. Riboflavin
B. Pyridoxine
C. Niacin
D. Pantothenic acid
Vitamin C is present in largest amount in the body in____________?
A. Eye
B. Kidneys
C. Testes
D. Adrenal cortex
Two Vitamin whose derivatives are involved in transformation of serine to glycine are_____________?
A. B6 ad B12
B. B12 and nicotinamie
C. Folic acid and B6
D. Folic acid and B12
Which of the following amino acid is involved in gluconeogenesis______________?
A. Glycine
B. Valine
C. Cysteline
D. All of the above
Scurvy is the result of deficiency of____________?
A. Vitamin A
B. Vitamin C
C. Vitamin B
D. Vitamin D
Cytochromes are_____________?
A. Pyridine nucleotides
B. Riboflavin containing nucleotides
C. Metal containing flavoproteins
D. Iron-porphyrin proteins
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