1401. The vitamin K dependent protein C and S are characterized by their ability to inactive factor:

A. VIII a and V a *
C. V a
D. None of the above

1402. Who is known for his work on scurvy?

A. Fracastorius
B. James Lind *
C. John Snow
D. Edward Jenner

1403. Aniacinosis result in :

A. Perleche
B. Beri Beri
C. Pellagra *
D. Nyctalopia

1404. Biotin is required for the activity of :

A. Pyruvate carboxylase *
B. Lactate dehydrogenase
C. Succinate thiokinase
D. Phosphohexose isomerase

1405. All of the following are true about manifestations of vitamin E deficiency except :

A. Hemolytic anemia
B. Posterior column abnormalities
C. Cerebellar ataxia
D. Autonomic dysfunctions *

1406. Both vitamin K and C are involved in :

A. The synthesis of clotting factors
B. Post translational modifications *
C. Antioxidant mechanisms
D. The microsomal hydroxylation reactions

1407. Thiamine deficiency can be diagnosed by measuring :

A. Thiamine levels in blood
B. Alkaline phosphatase levels in blood
C. Transketolase activity in RBC *
D. Plasma pyruvate and lactic acid levels

1408. Vitamin B 12 is :

A. Extrinsic factor of castle *
B. Intrinsic factor of castle
C. Cyano cobalamine
D. A fat soluble vitamin

1409. Sources of the nucleotide portion of NAD include :

A. N-methyl nicotinamide
B. Riboflavin
D. Tryptophan *

1410. Consumption of raw egg white in the diet may result in the deficiency of :

A. Riboflavin
B. Biotin *
C. Thiamine
D. Pyridoxine