Enzyme Reaction Which of the following is the best evidence for the lock and key theory of enzyme action? 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 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 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 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. half approximately equal lesser greater half approximately equal lesser greater ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction An endergonic reaction is one that looses energy requires energy in order to proceed gives off much heat releases energy for work looses energy requires energy in order to proceed gives off much heat releases energy for work 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 induction feedback inhibition of enzyme activity none of these enzyme repression enzyme induction feedback inhibition of enzyme activity none of these enzyme repression ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction If the free energy change (ΔG) in a reaction is a negative value, it indicates that the 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 reaction is in positive direction ANSWER DOWNLOAD EXAMIANS APP
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