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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Chapter 17, Problem 24P
Interpretation Introduction
Interpretation:
The reason for TCA being a part of aerobic respiration but does not need oxygen.
Concept introduction:
The citric acid cycle is a catabolic process. It is a series of
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20. A hoax, perhaps? The citric acid cycle is part of aero-bic respiration, but no O 2 is required for the cycle. Explainthis paradox.
Some people say that citric acid cycle and the fatty acid oxidation share many similarities. Do you agree with this? Explain with reasons.
Although molecular oxygen (O2) does not participate directly in any of the reactions of the citric acid cycle, the cycle operates only when O2 is present. Explain this observation.
Chapter 17 Solutions
Biochemistry
Ch. 17 - Prob. 1PCh. 17 - Prob. 2PCh. 17 - Prob. 3PCh. 17 - Prob. 4PCh. 17 - Prob. 5PCh. 17 - Prob. 6PCh. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Prob. 9PCh. 17 - Prob. 10P
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- The intermediates of glycolysis are phosphorylated, but those of the citric acid cycle are not. Suggest a reason why.arrow_forward49. Which of these is NOT true of the citric acid cycle? Group of answer choices The citric acid cycle uses both NAD+ and FADH as electron carriers. The citric acid cycle produces ATP via oxidative phosphorylation. The citric acid cycle produces two ATP per glucose molecule. The citric acid cycle occurs in the mitochondria.arrow_forwardAfter several days of starvation, the ability of the liver to metabolize acetyl-CoA via the citric acid cycle is severely compromised. Explain why. Your explanation should NOT exceed 20 words. The 21st word onwards will not be read and considered.arrow_forward
- 7:09 docs.google.com/forms The oxygen required by cellular-1 * respiration becomes part of إجابتك Why is pyruvate not oxidized to-3 CO2 and H2O under anaerobic * .?conditions إجابتك The metabolic process that-2 produces the most ATP molecules is إجابتكarrow_forwardEffects of Changing Metabolite Concentrations on Glycolysis In an erythrocyte undergoing glycolysis what would be the effect of a sudden increase in the concentration of a. AΤP? b. AMP? c. fructose-1.6-bisphosphate? d. fructose-2, 6-bisphosphate? e. citrate? f. glucose-6-phospthate?arrow_forwardComplete oxidation of a 16-carbon fatty acid can yield 129 molecules of ATP Study Figure 19.2 and determine how many ATP molecules would be generated if a 16-carbon fatly acid were metabolized solely by the TCA cycle, in the form of S acetyl-CoA molecules.arrow_forward
- Why palmitate molecule generated a total of 129 ATPs for complete oxidation? compute the ATP molecules generated in the complete oxidation of other fatty acids.arrow_forwardThis 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).arrow_forwardWhat molecules do NOT participate in Citric acid cycle? на сто HO H-C-OH HO-C-H H-C-OH H-C-OH CH₂OH 0=P-0. 0=P-0. ОН ОН Citrulline OH OH Oxaloacetate NH₂ NH₂arrow_forward
- Most metabolic pathways are relatively long and appear to be very complex. For example, there are 10 individual chemical reactions in glycolysis, converting glucose to pyruvate. Suggest a reason for the complexity.arrow_forwardThe formation of water from O2 (46-4H02-2H₂0) [Select] mitochondrial membrance because it the reaction takes place in the [Select] the maintenance of the proton electrochemical gradient across the inner # space.arrow_forwardAmong the choices,I. alpha-ketoglutarateII. GlutamineIII. NADPHIV. H+which among here is the intermediate of citric acid cycle wherein it undergoes reductive amination with glutamine and functions as nitrogen donorarrow_forward
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