Enzymes
Common feature in all serine proteases is a

single reactive serine residue
hydrophobic specificity pocket
hydrophilic specificity pocket
cluster of reactive serine residues

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

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

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

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