Enzymes Which of the following statements about enzymes or their function is true? All of these Enzymes speed up reactions by lowering activation energy Enzymes are proteins whose three-dimensional form is key to their function Enzymes do not alter the overall change in free energy for a reaction All of these Enzymes speed up reactions by lowering activation energy Enzymes are proteins whose three-dimensional form is key to their function Enzymes do not alter the overall change in free energy for a reaction ANSWER DOWNLOAD EXAMIANS APP
Enzymes Before they can react, many molecules need to be destabilized. This state is typically achieved through changing the three-dimensional shape of the molecule changing the reaction from a biosynthetic to a catabolic pathway oxidizing the molecules by removing electrons 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 the input of a small amount of activation energy ANSWER DOWNLOAD EXAMIANS APP
Enzymes The nucleophile in serine proteases is Asparagine water both (a) and (b) Serine Asparagine water both (a) and (b) Serine ANSWER DOWNLOAD EXAMIANS APP
Enzymes What is the specificity of the Clostripain protease? It cleave after Lys residues None of these It cleave after His residues It cleave after Arg residues It cleave after Lys residues None of these It cleave after His residues It cleave after Arg residues ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the common features are shared between serine and aspartate proteases? Both require water to complete the catalytic cycle All of these Both show specificity for certain amino acid sequences Both use a base to activate the nucleophile Both require water to complete the catalytic cycle All of these Both show specificity for certain amino acid sequences Both use a base to activate the nucleophile 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
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