The condensation reaction catalyzed by ß-ketoacyl-ACP synthase synthesizes a four-carbon unit by combining a two-carbonunit and a three-carbon unit, with the release of CO₂.What is the thermodynamic advantage of this process over one that simply combines two two-carbon units?The reaction is reversible and does not require the input of ATP.The exergonic release of CO₂ drives the irreversible reaction in the direction of fatty acid synthesis.The release of CO₂ is endergonic and results in the production of ATP.The reaction is endergonic and requires the input of ATP.

Malonyl CoA is formed from carboxylation of Acetyl CoA through an ATP consuming process by biotin…

Answered: The condensation reaction catalyzed by…

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter17: Metabolism: An Overview

Section: Chapter Questions

Problem 14P

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Similar questions

Both prokaryotic and eukaryotic organisms carry out some form of glycolysis. How does ha fact support or not support the assertion that glycolysis is one of the oldest metabolic pathways?
When the cells of our body are in dire need to synthesize Ribose 5 phosphate and it has already enough supply of NADPH, reverse non oxidative pathway of the HMP shunt pathway takes place. If the cell has 10 glucose 6 phosphate molecules, how many of these would be converted to Fructose 6 phosphate and how many to form glyceraldehyde 3 phosphate respectively to synthesize maximum number of Ribose 5 phosphate? 8:2 2:8 4:6 6:4
In the krebs cycle, if the enzyme used succinate dehydrogenase used NAD+ as the oxidizing agent, what impact would it have on the overall production of ATP in the call?
In the glycolysis, the only redox reaction “glyceraldehyde 3-phosphate → 1,3-bisphosphoglycerate” (enzyme: glyceraldehyde 3-phosphate dehydrogenase) involves all of the following EXCEPT the: Question 13 options: formation of 1,3-bisphosphoglycerate utilization of inorganic phosphate as a reactant reduction of NAD+ to NADH utilization of ATP as a reactant oxidation of glyceraldehyde 3-Phosphate
Which of the following best describes the number of NAD+ that get reduced in the matrix reactions: 10 NAD+ REDUCED 8 NAD+ REDUCED 6 NAD+ REDUCED 4 NAD+ REDUCED 2 NAD+ REDUCED NAD+ do not get reduced in the matrix, they only get oxidized When the acetyl-group from pyruvate enters the Krebs Cycle, CO2 loss is coupled with: oxidation of NADH hydrolysis pf water. condensation of water. phosphorylation. reduction of NAD+ Which of the following would cause a drop in free energy during the oxidation of glucose? the oxidation of G3P and reduction of FAD the oxidation of pyruvate and reduction of CO2 the reduction of pyruvate and oxidation of G3P the oxidation of malate and the reduction of NAD+ the oxidation of NADH and the oxidation of protein complex I
Using understanding of the thermodynamics laws, explain the energy transformations for the following processes. a. Glucose – Pyruvase + 2ATF + 2NADH b. Pyruvate – Acetyl-CoA + NaDH c. Citric acid – Oxoloacetate + 3NaDH + FADH2 + ATP d. H20 at PSII – ATP e. Photon at PSI – NADPH f. Co2 + RuBp – 3PG + ATP + NADPH – G3P (1/6 of which is converted to glucose)
A group of researchers are interested in producing hydrogen gas from microbial cells. They want to know the maximum theoretical yield of H2 per molecule of glucose. Assuming that a glucose molecule fed to a cell is directly converted to glucose-6-phosphate(G6P) and undergoes the pentose phosphate pathway. Calculate how many molecules of NADPH can be obtained from this pathway along Co2 and H+.
The conversion of 1 mol of fructose 1,6-bisphosphate to 2 mol of pyruvate by the glycolytic pathway results in a net formation of: a. 1 mol of NAD+ and 2 mol of ATP. b. 1 mol of NADH and 1 mol of ATP. c. 2 mol of NAD+ and 4 mol of ATP. d. 2 mol of NADH and 2 mol of ATP. e. 2 mol of NADH and 4 mol of ATP.
For the theoretical maximum yield of ATP per glucose molecule oxidized by aerobic respiration, we will assume that for each pair of electrons transferred to the electron transport chain by NADH, 3 ATP will be generated; for each electron pair transferred by FADH2, 2 ATP will be generated. If NADH is produced in the cytoplasm, it will only generate 2 ATP but NADH produced in the mitochondria will release 3 ATP. In a molecule of glucose, how many molecules of FADH2 will be produced? *
How many mol of NADH can be obtained upon the beta oxidation of stearic acid? How many mol of ATP can be obtained upon the complete oxidation of 1 mol stearic acid? How many steps in glycolysis in which ATO is converted to ADP?
Given the following question, for each of the three reactions catalyzed by NADH dehydrogenase complex, identify the following1. electron donor2. electron acceptor3. the reducing agent4. the oxidizing agent
Rapidly dividing cells such as bone marrow, skin, intestinal mucosa, and cancer cells need DNA synthesis. In these cells, the following is observed: a. a decreased NADPH / NADP+ ratio b. increased flux through the oxidative reactions c. Flux through the oxidative reactions is low and the nonoxidative reactions are reversed to make ribose 5-phosphate. d. Ribose 5-phosphate is recycled through the oxidative steps via the nonoxidative reactions and gluconeogenesis. e. Ribose 5-phosphate is shunted into glycolysis by the nonoxidative reactions.

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