Enzyme Reaction Which of the following is the best evidence for the lock and key theory of enzyme action? Enzymes speed up reactions by definite amounts Enzymes are found in living organisms and speed up certain reactions Compounds similar in structure to the substrate inhibit enzyme activity Enzymes determine the direction of a reaction Enzymes speed up reactions by definite amounts Enzymes are found in living organisms and speed up certain reactions Compounds similar in structure to the substrate inhibit enzyme activity Enzymes determine the direction of a reaction ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction The ability of CTP to bind to aspartate carbamoyltransferase and shut down the synthesis of more CTP is an example of none of these enzyme induction feedback inhibition of enzyme activity enzyme repression none of these enzyme induction feedback inhibition of enzyme activity enzyme repression ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction In the reaction, C6H12O6 + 6O2 → 6CO2 + 6H2O + energy, which component is being reduced? H2O Energy O2 CO2 H2O Energy O2 CO2 ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction To a living organism, which of the following has the greatest amount of available energy per molecule? ATP H2O AMP ADP ATP H2O AMP ADP 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. approximately equal greater lesser half approximately equal greater lesser half ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction The fact that β-oxidation of fatty acids, occurs in the mitochondria whereas fatty acid synthesis occurs in the cytoplasmic matrix, is an example of regulation of enzymatic activity by the __________ mechanism. induction competitive inhibition compartmentation repression induction competitive inhibition compartmentation repression ANSWER DOWNLOAD EXAMIANS APP
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