Enzymes Which of the following statements about enzymes or their function is true? Enzymes do not alter the overall change in free energy for a reaction Enzymes are proteins whose three-dimensional form is key to their function Enzymes speed up reactions by lowering activation energy All of these Enzymes do not alter the overall change in free energy for a reaction Enzymes are proteins whose three-dimensional form is key to their function Enzymes speed up reactions by lowering activation energy All of these ANSWER DOWNLOAD EXAMIANS APP
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 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 Both show specificity for certain amino acid sequences Both forms an acyl-enzyme intermediate Both use nucleophilic attack to hydrolyze the peptide bond ANSWER DOWNLOAD EXAMIANS APP
Enzymes What is the specificity of the Clostripain protease? It cleave after His residues None of these It cleave after Arg residues It cleave after Lys residues It cleave after His residues None of these It cleave after Arg residues It cleave after Lys residues ANSWER DOWNLOAD EXAMIANS APP
Enzymes Enzyme-driven metabolic pathways can be made more efficient by All of these fixing enzymes into membranes so that they are adjacent to each other concentrating enzymes within specific cellular compartments grouping enzymes into free-floating, multienzyme complexes All of these fixing enzymes into membranes so that they are adjacent to each other concentrating enzymes within specific cellular compartments grouping enzymes into free-floating, multienzyme complexes ANSWER DOWNLOAD EXAMIANS APP
Enzymes The nucleophile in serine proteases is Asparagine both (a) and (b) Serine water Asparagine both (a) and (b) Serine water ANSWER DOWNLOAD EXAMIANS APP
Enzymes The cleavage specificity of trypsin and chymotrypsin depend in part on the presence of a low-barrier hydrogen bond in the active site or specificity pocket size, shape, and charge of the active site or specificity pocket absence of water in the active site proximity of Ser 195 to the active site or specificity pocket presence of a low-barrier hydrogen bond in the active site or specificity pocket size, shape, and charge of the active site or specificity pocket absence of water in the active site proximity of Ser 195 to the active site or specificity pocket ANSWER DOWNLOAD EXAMIANS APP
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