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 are found in living organisms and speed up certain reactions Enzymes speed up reactions by definite amounts Enzymes determine the direction of a reaction Compounds similar in structure to the substrate inhibit enzyme activity Enzymes are found in living organisms and speed up certain reactions Enzymes speed up reactions by definite amounts Enzymes determine the direction of a reaction ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction A substrate binds to its enzyme at a location called the __________ site. active coenzyme substrate polypeptide active coenzyme substrate polypeptide ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction Anthranilate synthase, the first enzyme of tryptophan biosynthesis after the branch point shows feedback inhibition and repression due to L-serine pyruvate D-L-tryptophan hydantoin L-tryptophan L-serine pyruvate D-L-tryptophan hydantoin L-tryptophan 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 enzyme repression feedback inhibition of enzyme activity none of these enzyme induction enzyme repression feedback inhibition of enzyme activity none of these enzyme induction ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction An endergonic reaction is one that requires energy in order to proceed gives off much heat looses energy releases energy for work requires energy in order to proceed gives off much heat looses energy releases energy for work ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction The ability of a competitive inhibitor to bind to an active site in an allosterically controlled enzyme is __________ than the ability of a non-competitive inhibitor to bind to an active site in the same allosterically controlled enzyme. approximately equal lesser half greater approximately equal lesser half greater ANSWER DOWNLOAD EXAMIANS APP
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