Enzymes Before they can react, many molecules need to be destabilized. This state is typically achieved through 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 changing the three-dimensional shape of the molecule changing the reaction from a biosynthetic to a catabolic pathway ANSWER DOWNLOAD EXAMIANS APP
Enzymes The proteolysis rate enhancement by chymotrypsin (~1010 folds) corresponds to a reduction in activation energy of about 49 kJ/mol 40 kJ/mol 58 kJ/mol 88 kJ/mol 49 kJ/mol 40 kJ/mol 58 kJ/mol 88 kJ/mol ANSWER DOWNLOAD EXAMIANS APP
Enzymes Tryprotophan synthetase of E.coli, a typical bifunctional oligomeric enzyme consist of a protein designated B a protein A and one-subunit a a protein designated A two proteins designated A and B a protein designated B a protein A and one-subunit a a protein designated A two proteins designated A and B ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the following statements about enzymes or their function is true? All of these Enzymes do not alter the overall change in free energy for a reaction Enzymes speed up reactions by lowering activation energy Enzymes are proteins whose three-dimensional form is key to their function All of these Enzymes do not alter the overall change in free energy for a reaction Enzymes speed up reactions by lowering activation energy Enzymes are proteins whose three-dimensional form is key to their function ANSWER DOWNLOAD EXAMIANS APP
Enzymes What is the specificity of the Clostripain protease? It cleave after His residues None of these It cleave after Lys residues It cleave after Arg residues It cleave after His residues None of these It cleave after Lys residues It cleave after Arg residues ANSWER DOWNLOAD EXAMIANS APP
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 show specificity for certain amino acid sequences Both require water to complete the catalytic cycle Both forms an acyl-enzyme intermediate Both use nucleophilic attack to hydrolyze the peptide bond Both show specificity for certain amino acid sequences Both require water to complete the catalytic cycle ANSWER DOWNLOAD EXAMIANS APP
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