What chemical species does chymotrypsin stabilize the most during the course of the reaction ?

Consider the reaction catalyzed by PFK. In the presence of AMP, which of the following will be expected? Check all that apply: a)The Km for substrate would be decreased b) the initial velocity plot would show the curve shifted to the right c) the R state is stabilized d)the rate of the reaction is diminished

Consider the reaction converting succinate into fumarate (see p. 560). (a) Is succinate oxidized or reduced in this reaction (and how do you know)? (b) You add molecular O2 as the redox partner for this reaction. Draw the Lewis dot structures for the relevant moeities on succinate, fumarate, O2 and H2O. (c) What is AG" for for the conversion of succinate into fumarate in the presence of O2 and H2O?

The following questions are based on the reaction A+ B ↔ C+D shown in Figure 8.1.   1. Which of the following terms best describes the progress of the reaction with respect to free energy change? a) endergonic, ∆G> 0 b) exergonic, ∆G> 0 c) exergonic, ∆G< 0 d) endergonic, ∆G< 0   2. Which of the following in Figure 8.1 remains unchanged by having an enzyme included? a) b b) d c) a       d) c   3. The part labeled “C” on the above graph represents a) Energy of activation without enzyme b) Energy of activation with enzyme c) Amount of free energy released d) amount of energy required for the reaction progress