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 FADH to be oxidized is __________ than the ability of FAD to be oxidized. lesser half greater approximately equal lesser half greater approximately equal ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction About 7.3 kcal/mole are released when glucose is converted to CO2 and H2O NAD+ is reduced to NADH the terminal phosphate bond of ATP is broken by hydrolysis ATP hydrolysis is coupled to sucrose synthesis glucose is converted to CO2 and H2O NAD+ is reduced to NADH the terminal phosphate bond of ATP is broken by hydrolysis ATP hydrolysis is coupled to sucrose synthesis ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction An enzyme that is always produced, regardless of the presence of substrates or the end products, is called a constitutive enzyme a repressible enzyme an allosteric enzyme an isoenzyme a constitutive enzyme a repressible enzyme an allosteric enzyme an isoenzyme 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 If the free energy change (ΔG) in a reaction is a negative value, it indicates that the reaction releases energy reaction absorbs energy reaction is in positive direction reaction is in negative direction reaction releases energy reaction absorbs energy reaction is in positive direction reaction is in negative direction ANSWER DOWNLOAD EXAMIANS APP
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