Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Question
Chapter 16, Problem 34P
Interpretation Introduction
Interpretation:
The energetic barriers that prevent glycolysis to occur in reverse and the energy required to overcome this barrier needs to be determined.
Concept introduction:
Glycolysis is the process that occurs in the cytoplasm of the cell. It is the breakdown of one molecule of glucose into two molecules of pyruvic acid. During this process energy is released in the form of two moles of ATP. The purpose of glycolysis is to maintain the blood glucose level.
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Students have asked these similar questions
They are everywhere. What energetic barrier prevents glycolysis from simply running in reverse tosynthesis glucose? What is the energetic cost to overcome this barrier?
This is the ATP accounting question. You are limited to the carbon in the following molecules:
One xylulose 5-phosphate, One glyceraldehyde 3-phosphate, One sedoheptulose 7-phosphate, 1 Oxaloacetate, and 3 carbon dioxide
A) Disregard regulation completely regarding pathway activity, using only the enzymes of glycolysis, pentose phosphate pathway, and citric acid cycle, what is the maximum ATP one can generate with these molecules?
B) Disregard regulation completely regarding pathway activity, using only the enzymes of glycolysis, Calvin- Benson-Bassham cycle, and citric acid cycle, what is the maximum ATP one can generate with these molecules (in this instance only, you also are given 3 ATP and note that you do NOT need to regenerate substrates for rubisco once you get through this enzyme).
I'm confused about glycolysis and gluconeogenesis.
Question:
What is the function of glyceraldehyde 3-phosphate dehydrogenase?
Is it because of
-> The incorporation of a phosphate from ATP and reduction of glyceraldehyde 3-phosphate
or
->The incorporation of phosphate from inorganic phosphate and reduction of glyceraldehyde 3-phosphate.
or
-> The incorporation of phosphate from inorganic phosphate and oxidation of glyceraldehyde 3-phosphate
Chapter 16 Solutions
Biochemistry
Ch. 16 - Prob. 1PCh. 16 - Prob. 2PCh. 16 - Prob. 3PCh. 16 - Prob. 4PCh. 16 - Prob. 5PCh. 16 - Prob. 6PCh. 16 - Prob. 7PCh. 16 - Prob. 8PCh. 16 - Prob. 9PCh. 16 - Prob. 10P
Ch. 16 - Prob. 11PCh. 16 - Prob. 12PCh. 16 - Prob. 13PCh. 16 - Prob. 14PCh. 16 - Prob. 15PCh. 16 - Prob. 16PCh. 16 - Prob. 17PCh. 16 - Prob. 18PCh. 16 - Prob. 19PCh. 16 - Prob. 20PCh. 16 - Prob. 21PCh. 16 - Prob. 22PCh. 16 - Prob. 23PCh. 16 - Prob. 24PCh. 16 - Prob. 25PCh. 16 - Prob. 26PCh. 16 - Prob. 27PCh. 16 - Prob. 28PCh. 16 - Prob. 29PCh. 16 - Prob. 30PCh. 16 - Prob. 31PCh. 16 - Prob. 32PCh. 16 - Prob. 33PCh. 16 - Prob. 34PCh. 16 - Prob. 35PCh. 16 - Prob. 36PCh. 16 - Prob. 37PCh. 16 - Prob. 38PCh. 16 - Prob. 39PCh. 16 - Prob. 40PCh. 16 - Prob. 41PCh. 16 - Prob. 42PCh. 16 - Prob. 43PCh. 16 - Prob. 44PCh. 16 - Prob. 45PCh. 16 - Prob. 46PCh. 16 - Prob. 47PCh. 16 - Prob. 48PCh. 16 - Prob. 49PCh. 16 - Prob. 50PCh. 16 - Prob. 51PCh. 16 - Prob. 52PCh. 16 - Prob. 53PCh. 16 - Prob. 54PCh. 16 - Prob. 55PCh. 16 - Prob. 56PCh. 16 - Prob. 57PCh. 16 - Prob. 58PCh. 16 - Prob. 59PCh. 16 - Prob. 60PCh. 16 - Prob. 61P
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- Following glycolysis. Most of the energy from the original glucose is in the form of: O A. high-energy electrons that are associated with electron carriers. О В. АТР О С. Н20 D. CO2 O E. pyruvic or lactic acid A Moving to another question will save this response.arrow_forwardBIOCHEMISTRY. Could glycerol be used to regenerate the OAA for maintenance of TCA cycle activity? Yes or No? Explain.arrow_forwardLong explanations are NOT NEEDED. ATP accounting. Consider 1 molecule of the sucrose (monomeric units: glucose and fructose) that will undergo complete oxidation. a. Number of pyruvate molecules after glycolysis.b. Net ATP produced in glycolysis only (via substrate-level phosphorylation).c. Number of NADH produced using the pyruvate dehydrogenase complex reaction.d. Number of NADH and FADH2 produced from Krebs cycle.e. Net ATP produced (complete oxidation via Malate aspartate shuttle).arrow_forward
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- True or False? Intermediates in the glycolysis pathway can be a source of raw material if the cell wants to construct biological molecules such as triglycerides or amino acids, but the citric acid cycle cannot be used this way.arrow_forwardLong explanations are NOT NEEDED. I pretty much have an idea already about this lesson, I would just like to see if my answers are correct, if it's wrong then kindly correct and just add a short explanation. ATP accounting. Consider 1 molecule of the sucrose (monomeric units: glucose and fructose) that will undergo complete oxidation. a. Number of pyruvate molecules after glycolysis is 4.b. Net ATP produced in glycolysis only (via substrate-level phosphorylation) is 2.c. Number of NADH produced using the pyruvate dehydrogenase complex reaction is 1.d. Number of NADH and FADH2 produced from Krebs cycle is 12 and 4 respectively.e. Net ATP produced (complete oxidation via Malate aspartate shuttle) is 64.arrow_forwardOver time (a lot of it!) mutations in metabolic enzymes can occur to create versions with different regulation or activity level. Which of the following mutations would result in increased glycolysis in liver cells? Group of answer choices a mutation that destroys the binding site for citrate in fructose 1,6-bisphosphatase a mutation that decreases affinity of GLUT2 for glucose a mutation that destroys the allosteric binding site for AMP in phosphofructokinase a mutation that increases the pyruvate kinase binding site affinity for fructose 1-6-bisphosphatearrow_forward
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