Enzymes
Which of the common features are shared between serine and aspartate proteases?

Both require water to complete the catalytic cycle
Both use a base to activate the nucleophile
Both show specificity for certain amino acid sequences
All of these

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

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

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

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

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