Oxidation is the loss of proton gain of protons gain of electron loss of electron TRUE ANSWER : ? YOUR ANSWER : ?
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 is in positive direction reaction absorbs energy TRUE ANSWER : ? YOUR ANSWER : ?
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 isoenzyme an allosteric enzyme TRUE ANSWER : ? YOUR ANSWER : ?
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 repression competitive inhibition compartmentation TRUE ANSWER : ? YOUR ANSWER : ?
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 determine the direction of a reaction Enzymes are found in living organisms and speed up certain reactions Enzymes speed up reactions by definite amounts TRUE ANSWER : ? YOUR ANSWER : ?
In the reaction, C6H12O6 + 6O2 → 6CO2 + 6H2O + energy, which component is being reduced? CO2 H2O Energy O2 TRUE ANSWER : ? YOUR ANSWER : ?
About 7.3 kcal/mole are released when ATP hydrolysis is coupled to sucrose synthesis the terminal phosphate bond of ATP is broken by hydrolysis glucose is converted to CO2 and H2O NAD+ is reduced to NADH TRUE ANSWER : ? YOUR ANSWER : ?
A substrate binds to its enzyme at a location called the __________ site. active polypeptide substrate coenzyme TRUE ANSWER : ? YOUR ANSWER : ?
The ability of CTP to bind to aspartate carbamoyltransferase and shut down the synthesis of more CTP is an example of enzyme induction none of these feedback inhibition of enzyme activity enzyme repression TRUE ANSWER : ? YOUR ANSWER : ?
The ability of FADH to be oxidized is __________ than the ability of FAD to be oxidized. approximately equal half greater lesser TRUE ANSWER : ? YOUR ANSWER : ?