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 The nucleophile in serine proteases is Asparagine Serine water both (a) and (b) Asparagine Serine water both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Enzymes Common feature in all serine proteases is a single reactive serine residue hydrophobic specificity pocket cluster of reactive serine residues hydrophilic specificity pocket single reactive serine residue hydrophobic specificity pocket cluster of reactive serine residues hydrophilic specificity pocket 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 oxidizing the molecules by removing electrons the input of a small amount of activation energy changing the reaction from a biosynthetic to a catabolic pathway changing the three-dimensional shape of the molecule oxidizing the molecules by removing electrons the input of a small amount of activation energy changing the reaction from a biosynthetic to a catabolic pathway ANSWER DOWNLOAD EXAMIANS APP
Enzymes How is the enzyme COX-1 important in human health? It helps to transport carbon dioxide in the blood It is a chemical derivative of aspirin It is critical for the biosynthesis of DNA It catalyzes the production of hormones that maintain the stomach lining It helps to transport carbon dioxide in the blood It is a chemical derivative of aspirin It is critical for the biosynthesis of DNA It catalyzes the production of hormones that maintain the stomach lining ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the following is false statement with regard to comparison between Serine and HIV proteases? 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 Both forms an acyl-enzyme intermediate ANSWER DOWNLOAD EXAMIANS APP
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