COMPUTER BASIC INFORMATION QUIZ

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

A, B, C, and D will all still be produced

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

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

decatalyze the oxidation of pyruvic acid to acetyl Co A and CO2

retard the reduction of pyruvic acid to acetyl Co A and CO2

Catalyze the reduction of pyruvic acid to acetyl Co A and CO2

Catalyze the oxidation of pyruvic acid to acetyl Co A and CO2

Elastase

all of these

Chymotrypsin

Trypsin

the input of a small amount of activation energy

changing the three-dimensional shape of the molecule

changing the reaction from a biosynthetic to a catabolic pathway

oxidizing the molecules by removing electrons

clamp the substrate into the active site

keep the specificity pocket open

neutralize the charge on the other's side chain

function as a proton shuttle

Serine

Asparagine

water

both (a) and (b)

absence of water in the active site

proximity of Ser 195 to the active site or specificity pocket

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

40 kJ/mol

58 kJ/mol

88 kJ/mol

49 kJ/mol

hydrophilic specificity pocket

hydrophobic specificity pocket

single reactive serine residue

cluster of reactive serine residues

a protein A and one-subunit a

a protein designated B

a protein designated A

two proteins designated A and B