Enzymes
The proteolysis rate enhancement by chymotrypsin (~1010 folds) corresponds to a reduction in activation energy of about

49 kJ/mol
88 kJ/mol
58 kJ/mol
40 kJ/mol

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Enzymes
Before they can react, many molecules need to be destabilized. This state is typically achieved through

the input of a small amount of activation energy
changing the reaction from a biosynthetic to a catabolic pathway
changing the three-dimensional shape of the molecule
oxidizing the molecules by removing electrons

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

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

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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 use nucleophilic attack to hydrolyze the peptide bond
Both require water to complete the catalytic cycle
Both show specificity for certain amino acid sequences

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