Many factors influence the regulation of aerobiccatabolism in biological cells, culminating inoxidative phosphorylation. Based on yourunderstanding of "metabolic logic", which of thefollowing molecules would encourage or favorcatabolism?OA. ATPOB. NADHOc. acetyl-CoAOD. ADPO E. citrate

The sequence of chemical reactions that occur inside the living body for the production of energy in…

Answered: Many factors influence the regulation…

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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Which of the following regarding the ATP Synthase is INCORRECT? Protons flow through the a and c subunits The translocation of four protons through the ATP synthase fuels the synthesis of one ATP molecule The F1 domain can function as an ATPase The y subunit rotates while the xß dimers are stationary
Which of the following statements about the aerobic respiration of a molecule of glucose is FALSE? O It requires pathways and membrane complexes in both the cytosol and mitochondria in eukaryotes. O 34 molecules of ATP are generated by oxidative phosphorylation. O It requires pathways and membrane complexes in the cytosol and plasma membrane in prokaryotes. O It can generate 38 molecules of ATP in prokaryotes. O 12 molecules of ATP are generated by substrate-level phosphorylation.
Many enzyme mechanisms involve transferring protons. Sidechains of an enzyme can act as catalytic acids or catalytic bases in this process. The figure below shows a step in the reaction by the enzyme triose phosphate isomerase. Glu165 group. -OH Would a catalytic acid gain or lose a proton? Which sidechain in the mechanism is acting as a catalytic acid? co CH,OPO, 2- Activity remaining (%) Would a catalytic base gain or lose a proton? Which sidechain in the mechanism is acting as a catalytic base? 100 Curve I 8 Glu¹65 9 Below are two pH rate profiles showing the percent activity as a function of pH. Answer the questions below about how these curves relate to the mechanism of triose phosphate isomerase. Remember what fraction of a titratable group is unprotonated at the pka. 10 OH In this reaction a carbonyl is converted into an enol intermediate. Circle the enol 100 Activity remaining (%) H Curve 2 CIOH CIOH CH₂OPO,²- 8 9 N N 10 7 pH PH i) Which of these curves shows the pH rate…
Unfavorable reactions can proceed through various strategies in metabolism. Which of the following is/are mechanisms that will push thermodynamically unfavorable reactions to proceed? ... By addition of a carbon dioxide through carboxylation reactions following by decarboxylation. By coupling with ATP and pyrophosphate hydrolysis. By the addition of a COASH that will trap metabolites inside cellular . compartments. 1. Both A and B All of these
Which of the following statements is true regarding metabolic pathways? NAD+ is used as a most commonly in anabolic pathways while NADPH is used most commonly in catabolic pathways. none of the answers choices are correct. catabolic pathways use a wide variety of substrates to produce a small number of waste products. O atabolic pathways are generally reductive while anabolic pathways are generally oxidative
ALL biosynthetic reactions require which of the following metabolites(s)? NADPH Glucose 6-P High energy bonds (e.g. ATP, UTP, GTP) A and B B and C
The energy stored in one molecule of NADH is used to synthesize how many molecules of ATP?
For each of the statements below about the dUTPase enzyme, mark whether it is true or false. If it is false, change the language to make the statement true. _______If the dUTPase enzyme is the rate determining step in a larger metabolic pathway, the reaction likely lies near to equilibrium and is irreversible. _______For the dUTPase reaction, it is not likely that DG’ = DG°’ _______ dUTPase has a higher affinity for its substrate than for its product, but both of these are higher than the affinity for the transition state _______Kinetic analysis of dUTPase using Michaelis-Menten methods assumes that the formation of the E*S complex has a large negative value for DG
Like many fruits, apples contain not only fructose and glucose, but also sucrose, a dimerof fructose and glucose. Synthesizing sucrose is endergonic and so not spontaneous. Onerole of ATP is to facilitate reactions that would not occur spontaneously. The threephosphate groups are electron rich and tend to repel each other. Therefore, ATP is a bitlike a compressed spring, ready to kick off one phosphate group releasing energy.Consider: Fructose + glucose --> Sucrose delta G= 6.4 kcal/mol ATP --> ADP + Pi delta G= -7.3 kcal/mol a. Draw a simple energy diagram (including the relative energy of the reactants andproducts) that shows why the sucrose synthesis reaction doesn’t occur spontaneously. b. How could having these two reactions occur at the same time help with sucroseproduction? c. Draw the energy diagram that shows all the reactants and products for the combinedreactions. d. What is delta G for the combined reactions? e. Name a few of the biological processes in the body that…
Enzymatic reactions within a cell are often specific for their substrates. Enzymes that use ATP will not efficiently use dATP. Enzymes that use NADH cannot use NADPH instead and enzymes that work on alpha glucose can’t work on beta glucose linkages. What physical property of enzymes causes them to be so picky?
Biological oxidation refers to the process in which organisms oxidize and decompose organic matter to produce carbon dioxide and water and release energy. Common forms in human body are (1) direct transfer of hydrogen atoms, or (2) adding water first and then dehydrogenation (i.e. indirect oxygen addition). Please give one example of each metabolic pathway, and ask for the names of specific substrates, products and enzymes.
The TCA cycle is a metabolic process that, if happening undisturbed, starts at a certain place and returns to that same place indefinitely with the input of only 1 metabolite. What are the metabolic inputs and outputs (what goes in and what comes out) of the TCA cycle? Make sure you include numbers beginning with a single input molecule.

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Many factors influence the regulation of aerobic catabolism in biological cells, culminating in oxidative phosphorylation. Based on your understanding of "metabolic logic", which of the following molecules would encourage or favor catabolism? OA. ATP OB. NADH Ос. аcetyl-CoА OD. ADP OE. citrate