Which of the following accurately characterize glycolysis under standard biochemicalconditions? (Pick two.)Glycolysis reduces glucose and produces oxidized electron carriers.Glycolysis oxidizes glucose and produces reduced electron carriers.The exergonic conversion of glucose into pyruvate is coupled to the endergonic synthesis of two ATPin a pathway that is exergonic, net.The endergonic conversion of glucose into pyruvate is coupled to the endergonic synthesis of twoATP in a pathway that is exergonic, net.

The metabolic process known as glycolysis converts the six-carbon glucose molecule into two…

Answered: Which of the following accurately…

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

See similar textbooks

Similar questions

Consider fatty acids from the hydrolysis of the given TAG in a liver cell where amino acid and nucleotide biosynthesis is very active For each fatty acid given, determine the following. Gross ATP from b-oxidation cycles Gross ATP from acetyl CoA produced Gross ATP from conversion of propionyl CoA (if applicable) Total number of ATP deducted Total net ATP
1. (a) The reaction catalyzed by citrate synthase is the first step of the TCA cycle. In glycolysis, two key reactions to produce ATP occur because an unfavorable reaction is coupled to another reaction that is thermodynamically favorable. The reaction catalyzed by citrate synthase is similarly coupled to an unfavorable reaction in the TCA cycle. Write the unfavorable TCA reaction using structural formulas and write the key step that drives the two coupled reactions forward. What is the overall AG" of the coupled reactions? (b). K(yM) 25.7 Inhibitor Bromoacetyl-CoA ATP NADH 6800 8300 The inhibitor constants for three inhibitors of por- cine citrate synthase are summarized in the table on the right. The compounds were all determined to bind in the ac- tive site as competitive inhibitors of acetyl-CoA. Because they bind as competitive inhibitors, all three inhibitors must exhibit structural similarity to some part of acetyl-CoA. Look up in the textbook the structural formulas for…
During glycolysis (under anaerobic conditions), for each glucose molecule broken down, how many ATP molecules are used and how many are made in total? A diagram summarizing the different reactions of glycolysis is given below. ATP ADP ATP ADP Glucose Glucose-6-phosphate Fructose-6-phosphate Fructose-1,6-bisphosphate Dihydroxyacetone phosphate 2 (Glyceraldehyde-3-phosphate) Glyceraldehyde- 3-phosphate 2 (1,3-Bisphosphoglycerate) 2 (3-Phosphoglycerate) 2 (2-Phosphoglycerate) 2 H₂O 2 (Phosphoenolpyruvate) 2 (Pyruvate) 2 NAD+ + 2Pi 2 NADH + 2H 2 ADP 2 ATP -2 ADP 2 ATP 2 ATP molecules are used and 2 ATP molecules are made 2 ATP molecules are used and 4 ATP molecules are made O 6 ATP molecules are used and no ATP molecules are made O 4 ATP molecules are used and 2 ATP molecules are made O No ATP molecules are used and 6 ATP molecules are made
Fructose may enter glycolysis via 2 different pathways. Describe the both pathways for fructose to enter glycolysis. Would the primary regulation point for glycolysis regulate all metabolism of fructose? Explain your answer.
a.Write the balanced reactions catalyzed by complex I, II, III, and 1V, and using these, write the balanced net reaction for the electron transport chain. Structures are not necessary. b. Write the balanced reaction for the ATP synthase reaction. c. Write the net reaction for Oxidative phosphorylation showing the ATP produced from NADH oxidation and FADH2 oxidation. (this is in your text) d. Write the balanced reaction for ATP production by aerobic metabolism starting with glucose.
Consider the following types of cell and their respective conditions: i. a liver cell with non-functional malate-aspartate shuttle* ii. a skeletal muscle cell lacking oxygen iii. a cell with ATP synthase deficiency* iv. a yeast cell undergoing fermentation but with defective alcohol dehydrogenase (hint: In yeast, alcohol dehydrogenase is responsible for shuttling reducing equivalents of cytosolic NADH to the mitochondria.)* V. a brain cell with non-functional Complex II of the electron transport chain* * Assume that the deficiency is isolated and will not influence the function of other respiration components
Calculate the number of ATPS generated by the complete metabolic oxida- tion of tripalmitin (tripalmitoylglycerol). Hydrolysis of the triacylglycerol occurs at the cell surface. Consider the energy yield from catabolism of glycerol, as well as from the fatty acids. Calculate the ATP yield per carbon atom oxidized, and compare it with the energy yield from glucose.
The coenzyme NAD+ is required for which glycolytic reaction shown below? Oglyceraldehyde-3-P→ 1,3-bisphosphoglycerate glucose glucose-6-P fructose-6-P→ fructose-1,6-BP 2-phosphoglycerate → phosphoenolpyruvate
Two reactions are shown below. These reactions are directly coupled in cells by an enzyme called hexokinase, which is a key enzyme in glycolysis. It is generally the case that reactions that are directly coupled by enzymes share some common reactants. What is the net reaction when these two reactions are combined? Glucose + Inorganic Phosphate + ATP + Water → Glucose 6-phosphate + ADP Glucose + ATP + Water → Glucose 6-phosphate + ADP + Inorganic Phosphate Glucose + ATP → Glucose 6-phosphate + Inorganic Phosphate Glucose + ATP → Glucose 6-phosphate + ADP
Arsenate can replace inorganic phosphate in the reaction catalyzed by glyceraldehyde-3-phosphate dehydrogenase, causing glyceraldehyde-3-phosphate to be directly converted to 3-phosphoglycerate(NADH is still formed). Which of the following is absolutely true in case of arsenate poisoning -Glycolysis will stop - Glycolysis will still proceed with no net ATP gain - Glycolysis will not generate any form of energy - Glycolysis will still proceed, but with a net consumption of ATP - Glycolysis will proceed with lactate as end product
The AG of the reaction C6H12O6 + 60₂ --> 6CO₂ + 6H₂O is -686 kcal/mol glucose oxidized. The AG of the reaction ADP + P₁ --> ATP + H₂O is + 7.3 kcal/mol ATP synthesized. The oxidation of glucose can be coupled to the synthesis of ATP. If the coupling is 50% efficient, how many molecules of ATP can be synthesized per molecule of glucose oxidized? Round your answer to the nearest whole number.
Step 3: the phosphorylation of fructose 6-phosphate, is the first committed step of glycolysis. This step is catalyzed by phosphofructokinase, an enzyme that can be regulated allosterically by many molecules (two of which are ADP and phosphoenolpyruvate). Why is this regulation important?

Recommended textbooks for you

Biochemistry

ISBN:

9781319114671

Author:

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

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781319114671

Author:

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

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781305961135

Author:

Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:

Cengage Learning

Biochemistry

ISBN:

9781305577206

Author:

Reginald H. Garrett, Charles M. Grisham

Publisher:

Cengage Learning

Fundamentals of General, Organic, and Biological …

Biochemistry

ISBN:

9780134015187

Author:

John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson

Publisher:

PEARSON

SEE MORE TEXTBOOKS