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

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

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

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

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Enzymes
In the enzyme-catalyzed reaction shown below, what will be the effect on substances A, B, C, and D of inactivating the enzyme labeled E2? A ---(E1)---> B ---(E2)---> C ---(E3)--->

A, B, C, and D will all still be produced
A will still be produced, but not B, C, or D
A, B, and C will still be produced, but not D
A and B will still be produced, but not C or D

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

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

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