Enzymes
What is the specificity of the Clostripain protease?

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

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Enzymes
The cleavage specificity of trypsin and chymotrypsin depend in part on the

size, shape, and charge of the active site or specificity pocket
presence of a low-barrier hydrogen bond in the active site or specificity pocket
proximity of Ser 195 to the active site or specificity pocket
absence of water in the active site

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

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

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

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

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Enzymes
Enzyme-driven metabolic pathways can be made more efficient by

All of these
concentrating enzymes within specific cellular compartments
fixing enzymes into membranes so that they are adjacent to each other
grouping enzymes into free-floating, multienzyme complexes

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