Enzymes
What is the specificity of the Clostripain protease?

It cleave after Arg residues
It cleave after Lys residues
None of these
It cleave after His residues

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Enzymes
The E.coli pyruvic acid dehydrogenase complex is reported to

decatalyze the oxidation of pyruvic acid to acetyl Co A and CO2
Catalyze the oxidation of pyruvic acid to acetyl Co A and CO2
retard the reduction of pyruvic acid to acetyl Co A and CO2
Catalyze the reduction of pyruvic acid to acetyl Co A and CO2

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Enzymes
Which of the following is false statement with regard to comparison between Serine and HIV proteases?

Both use nucleophilic attack to hydrolyze the peptide bond
Both require water to complete the catalytic cycle
Both forms an acyl-enzyme intermediate
Both show specificity for certain amino acid sequences

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Enzymes
How is the enzyme COX-1 important in human health?

It helps to transport carbon dioxide in the blood
It is a chemical derivative of aspirin
It is critical for the biosynthesis of DNA
It catalyzes the production of hormones that maintain the stomach lining

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