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.Management Sciences
Category: Biochemistry
Which of the following is the poorest source of vitamin C ?
A. Milk
B. Cabbage
C. Guava
D. Radish
The reducing equivalent for fatty acid synthesis is derived form____________?
A. Glycolysis
B. Kreb’s cycle
C. Urea cycle
D. Pentose phosphate pathway
Thyroxine and catecholamines are derived from_____________?
A. Tyrosine
B. Tryptophan
C. Alanine
D. Leucine
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. Requires TPP as cofactor
D. Catalyzes a reversible reaction
On complete hydrolysis of DNA we will get all the following except______________?
A. Deoxy pentose sugar
B. Phosphoric acid
C. Adenosine
D. Purine bases
Galactosemia commonly is due to deficiency of_____________?
A. Galactose 1 phosphatase uridyl transferase
B. Galactose 1 phosphatase
C. Glucose 1 phosphatase
D. Glucose 6 phosphatase
Which of the following is not a ketone body______________?
A. Acetone
B. Acetic acid
C. Acetocetate
D. Beta hydroxybutyric acid
The sigma subunit of prokaryotic RNA polymerase_______________?
A. Binds the antibiotic Rifampicin
B. Is inhibited by a-amanitin
C. Specifically recognizes the promoter site
D. Is part of the core enzyme
Sources of the nucleotide portion of NAD include__________________?
A. N-methyl nicotinamide
B. Riboflavin
C. PRPP
D. Tryptophan
Denaturation of double stranded DNA involves_______________?
A. It gets broken down to nucleotides
B. It becomes single stranded reversibly
C. It becomes single stranded irreversibly
D. It becomes double stranded irreversibly
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