Enzyme Reaction Which of the following is the best evidence for the lock and key theory of enzyme action? Compounds similar in structure to the substrate inhibit enzyme activity Enzymes speed up reactions by definite amounts Enzymes determine the direction of a reaction Enzymes are found in living organisms and speed up certain reactions Compounds similar in structure to the substrate inhibit enzyme activity Enzymes speed up reactions by definite amounts Enzymes determine the direction of a reaction Enzymes are found in living organisms and speed up certain reactions ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction In the reaction, C6H12O6 + 6O2 → 6CO2 + 6H2O + energy, which component is being reduced? CO2 Energy H2O O2 CO2 Energy H2O O2 ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction Hydrogen and oxygen release enormous amounts of energy when they react. Yet, hydrogen and oxygen can be mixed together in a balloon and nothing will happen. Why? All of these Competitive inhibitors are blocking the reaction from occurring in the active site There must be contaminating elements in the balloon that prohibit the reaction from occurring The energy of activation to form the transition-state complex is too high to allow the reaction to occur without assistance All of these Competitive inhibitors are blocking the reaction from occurring in the active site There must be contaminating elements in the balloon that prohibit the reaction from occurring The energy of activation to form the transition-state complex is too high to allow the reaction to occur without assistance ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction If the free energy change (ΔG) in a reaction is a negative value, it indicates that the reaction is in positive direction reaction releases energy reaction is in negative direction reaction absorbs energy reaction is in positive direction reaction releases energy reaction is in negative direction reaction absorbs energy ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction A substrate binds to its enzyme at a location called the __________ site. substrate coenzyme polypeptide active substrate coenzyme polypeptide active ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction The affinity of an enzyme for its substrate, when the enzyme has a Km of 0.50 M will be __________ than the affinity of an enzyme for its substrate when the enzyme has a Km of 0.05 M. half lesser approximately equal greater half lesser approximately equal greater ANSWER DOWNLOAD EXAMIANS APP
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