1501. Which of the following is correct of the pyruvate dehydrogenase enzyme complex?

A. It is present in cytoplasm
B. Catalyzes the conversion of pyruvate to oxaloacetate
C. Required TPP as cofactor *
D. Catalyzes as reversible reaction

1502. DNA double helix is bound by :

A. Covalent bond
B. Hydrogen bond *
C. Disulfidelinkage
D. Vander wall froces

1503. Dehydrogenase used as coenzymes all of the following except :

D. Ferro protoporphyrin *

1504. Benzidine test is positive with the enzyme :

A. Cytochrome oxidase
B. Dehydrogenase
C. Hydrolase
D. Peroxidase *

1505. Key glycolytic enzymes :

A. Phosphofructonkinase *
B. Hexokinase
C. Pyruvate kinase
D. Glucose 1,6 Disphosphatase

1506. Multienzyme complex in human:

A. Fatty acids synthetase *
B. Malonyls CoA carboxylase
C. Carbomoyl phosphate synthesis
D. Adenosine phospho ribosyl transferase

1507. Which of the following is not a characteristic feature of allosteric enzymes ?

A. They are multienzyme complex *
B. Follow Michaelis-Menton Kinetics
C. Presence of Modulator site
D. Give sigmoid shaped curve

1508. A example of a preventive antioxidant is :

A. Catalase
B. Tocopherol *
C. Superoxide dismutase
D. Urate

1509. LDH has following number oflsoenzymes:

A. 5 *
B. 3
C. 11
D. 2

1510. One of the earliest sympotoms of Vitamin A deficiency is :

A. Nyctalopia *
B. Xerophthalmia
C. Bitot’s spot
D. Keratomalacia