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

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

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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 show specificity for certain amino acid sequences
Both forms an acyl-enzyme intermediate
Both require water to complete the catalytic cycle

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

proximity of Ser 195 to the active site or specificity pocket
absence of water in the active site
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

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