Enzymes Which of the following statements about enzymes or their function is true? Enzymes are proteins whose three-dimensional form is key to their function All of these Enzymes speed up reactions by lowering activation energy 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 All of these Enzymes speed up reactions by lowering activation energy Enzymes do not alter the overall change in free energy for a reaction ANSWER DOWNLOAD EXAMIANS APP
Enzymes Common feature in all serine proteases is a cluster of reactive serine residues single reactive serine residue hydrophilic specificity pocket hydrophobic specificity pocket cluster of reactive serine residues single reactive serine residue hydrophilic specificity pocket hydrophobic 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 changing the reaction from a biosynthetic to a catabolic pathway the input of a small amount of activation energy changing the three-dimensional shape of the molecule oxidizing the molecules by removing electrons changing the reaction from a biosynthetic to a catabolic pathway the input of a small amount of activation energy 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 The E.coli pyruvic acid dehydrogenase complex is reported to Catalyze the reduction of pyruvic acid to acetyl Co A and CO2 decatalyze the oxidation of pyruvic acid to acetyl Co A and CO2 Catalyze 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 decatalyze the oxidation of pyruvic acid to acetyl Co A and CO2 Catalyze the oxidation of pyruvic acid to acetyl Co A and CO2 retard the reduction of pyruvic acid to acetyl Co A and CO2 ANSWER DOWNLOAD EXAMIANS APP
Enzymes Enzyme-driven metabolic pathways can be made more efficient by grouping enzymes into free-floating, multienzyme complexes All of these concentrating enzymes within specific cellular compartments fixing enzymes into membranes so that they are adjacent to each other grouping enzymes into free-floating, multienzyme complexes All of these concentrating enzymes within specific cellular compartments fixing enzymes into membranes so that they are adjacent to each other ANSWER DOWNLOAD EXAMIANS APP
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