1. If the Keq for an enzymatic reaction is greater than 1, the reaction
2. An exergonic reaction is one that
3. If the free energy change (ΔG) in a reaction is a negative value, it indicates that the
4. To a living organism, which of the following has the greatest amount of available energy per molecule?
5. Which of the following is the best evidence for the lock and key theory of enzyme action?
6. In the reaction, C6H12O6+ 6O2 → 6CO2 + 6H2O + energy, which component is being oxidized?
7. 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.
8. In the reaction, C6H12O6 + 6O2 → 6CO2 + 6H2O + energy, which component is being reduced?
9. 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.
10. Anthranilate synthase, the first enzyme of tryptophan biosynthesis after the branch point shows feedback inhibition and repression due to
11. A substrate binds to its enzyme at a location called the __________ site.
12. Hydrogen and oxygen release enormous amounts of energy when they react. Yet, hydrogen and oxygen can be mixed together in a balloon and nothing will happen. Why?
13. Adenosine triphosphate is a type of
14. An enzyme that is always produced, regardless of the presence of substrates or the end products, is called
15. About 7.3 kcal/mole are released when
16. The ability of CTP to bind to aspartate carbamoyltransferase and shut down the synthesis of more CTP is an example of
17. Oxidation is the
18. Denaturation of an enzyme refers to the
19. The ability of Vibrio fischeri to convert chemical energy directly into radiant energy in bioluminescence is an example of __________ at work.
20. 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.
21. The ability of FADH to be oxidized is __________ than the ability of FAD to be oxidized.