5. Below are examples of biological reactions. Kindly draw a reasonable reaction mechanism using curved arrows. (a) Me Me ་་་་་ ིགས OPP OPP + PO4³ CO₂ (b) H₂C. CH₂ H₂C Me H₂O H₂C HO CH3 Me + H₂O° (c) Me Me + R R Et- Et- CH3 CO₂ HO CH3 OH Page

5. Below are examples of biological reactions. Kindly draw a reasonable reaction mechanism using curved arrows. (a) Me Me ་་་་་ ིགས OPP OPP + PO4³ CO₂ (b) H₂C. CH₂ H₂C Me H₂O H₂C HO CH3 Me + H₂O° (c) Me Me + R R Et- Et- CH3 CO₂ HO CH3 OH Page

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

An uncatalyzed reaction has keq=50. in the presence of an appropriate enzyme.the forward rate of the reaction increased by 20-fold.what is the equilibrium constant in the presence of the enzyme?
a) What type of polymer is being formed in Reaction #3? b) Name an enzyme that can catalyze Reaction #3. c) What is △Go of Reaction #3? Show your work & clearly label your answer.
Consider the hypothetical biochemical pathway shown below. Assume that each letter (A, B, C, etc) represents a molecule and each number (1, 2, 3, etc) represents an enzyme. Draw arrows indicating all the probable feedback inhibition interactions that would be expected to regulate the activity of enzymes in this pathway.
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
For an enzyme kinetics experiment, a student prepared a reaction mixture by mixing 450 microliters of 0.75mM PNPP with 4.25ml of 0.2M Tris-HCl buffer. When he is ready to measure the absorbance, he added 0.3ml of Alkaline Phosphatase to the mixture and mixed thoroughly. What is the substrate concentration at the beginning of the reaction in mM ?
Consider the following chemical equation whose delta(G) = 9kcal/mol: AC + BD ---> AB + CD what are the reactants and what are the products is this reaction spontaneous? How do you know? Is energy released or consumed by this reaction? If an enzyme, which catalyzes this reaction is added, what will happen to delta (G) If this reaction is coupled to another reaction, whose delta(G) is -12 kcal/mol, what will be the net delta(G) value? will the overall reaction be spontaneous
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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