FUND. GEN. ORG&BIO CHEM PKG
2nd Edition
ISBN: 9781323447345
Author: McMurry
Publisher: PEARSON C
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Chapter 22.5, Problem 22.9KCP
In alcoholic fermentation, each mole of pyruvate is converted to one mole of carbon dioxide and one mole of ethanol. In the process, about 50 kcal/mol (209 kJ/mol) of energy is produced. Under the most favorable conditions, more than one-half of this energy is stored as ATP.
(a) What happens to the remaining energy produced in alcoholic fermentation?
(b) Give two reasons why it would be nearly impossible to reverse the reaction that converts pyruvate to ethanol and carbon dioxide.
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What accounts for the ATP yield of fermentation being only a tiny fraction of the yield from aerobic respiration?
What happens to the pyruvate produced during glycolysis in muscle cells when very little oxygen is available?
When there is enough oxygen available to a muscle cell during cellular respiration, pyruvate will be converted to lactic acid, and fermentation will occur When there is not enough oxygen available to a muscle cell during cellular respiration, pyruvate will be converted to lactic acid, and fermentation will occur When there is enough oxygen available to a muscle cell during cellular respiration, lactic acid will be converted to pyruvate, and fermentation will occur When there is not enough oxygen available to a muscle cell during cellular respiration, lactic acid will be converted to pyruvate, and fermentation will occur
Chapter 22 Solutions
FUND. GEN. ORG&BIO CHEM PKG
Ch. 22.2 - Prob. 22.1PCh. 22.2 - Prob. 22.2PCh. 22.3 - Prob. 22.3PCh. 22.3 - Prob. 22.4PCh. 22.3 - Prob. 22.5PCh. 22.3 - Prob. 22.6KCPCh. 22.4 - Prob. 22.1CIAPCh. 22.4 - Prob. 22.2CIAPCh. 22.4 - Prob. 22.3CIAPCh. 22.4 - Explain the chemical process that leads to...
Ch. 22.4 - Prob. 22.5CIAPCh. 22.4 - Prob. 22.7PCh. 22.4 - Prob. 22.8PCh. 22.5 - In alcoholic fermentation, each mole of pyruvate...Ch. 22.5 - Name three ways humans have exploited the ability...Ch. 22.5 - Pyruvate has three different fates. What are the...Ch. 22.6 - Prob. 22.12PCh. 22.6 - Prob. 22.13PCh. 22.7 - Prob. 22.14PCh. 22.7 - Prob. 22.15PCh. 22.7 - Prob. 22.16KCPCh. 22.7 - Prob. 22.6CIAPCh. 22.7 - Prob. 22.7CIAPCh. 22.7 - Prob. 22.8CIAPCh. 22.8 - Prob. 22.17PCh. 22.8 - Prob. 22.18PCh. 22.9 - Prob. 22.19PCh. 22.9 - Prob. 22.20PCh. 22.9 - Prob. 22.21PCh. 22.9 - Prob. 22.9CIAPCh. 22.9 - Prob. 22.10CIAPCh. 22.9 - Prob. 22.11CIAPCh. 22.9 - Prob. 22.12CIAPCh. 22 - What class of enzymes catalyzes the majority of...Ch. 22 - Prob. 22.23UKCCh. 22 - Prob. 22.24UKCCh. 22 - Prob. 22.25UKCCh. 22 - Classify each enzyme of glycolysis into one of the...Ch. 22 - Prob. 22.27UKCCh. 22 - Name the molecules used for gluconeogenesis. What...Ch. 22 - Prob. 22.31APCh. 22 - Prob. 22.32APCh. 22 - Prob. 22.33APCh. 22 - Prob. 22.34APCh. 22 - Prob. 22.35APCh. 22 - Prob. 22.36APCh. 22 - Prob. 22.37APCh. 22 - Prob. 22.38APCh. 22 - Prob. 22.39APCh. 22 - Prob. 22.40APCh. 22 - Prob. 22.41APCh. 22 - Prob. 22.42APCh. 22 - Prob. 22.43APCh. 22 - Prob. 22.44APCh. 22 - Prob. 22.45APCh. 22 - Review the 10 steps in glycolysis (Figure 22.3)...Ch. 22 - Prob. 22.47APCh. 22 - Prob. 22.49APCh. 22 - Prob. 22.50APCh. 22 - Prob. 22.51APCh. 22 - How many moles of acetyl-CoA are produced by the...Ch. 22 - Prob. 22.53APCh. 22 - Prob. 22.54APCh. 22 - Prob. 22.55APCh. 22 - Prob. 22.56APCh. 22 - Prob. 22.57APCh. 22 - Prob. 22.58APCh. 22 - Prob. 22.59APCh. 22 - Why does glycogenolysis use fewer steps than the...Ch. 22 - Prob. 22.61APCh. 22 - Prob. 22.62APCh. 22 - Prob. 22.63APCh. 22 - Prob. 22.64APCh. 22 - Prob. 22.65APCh. 22 - Prob. 22.66APCh. 22 - Prob. 22.67APCh. 22 - Prob. 22.68APCh. 22 - Why can pyruvate cross the mitochondrial membrane...Ch. 22 - Look at the glycolysis pathway (Figure 22.3). With...Ch. 22 - Prob. 22.71CPCh. 22 - Prob. 22.72CPCh. 22 - Prob. 22.74CPCh. 22 - Prob. 22.75CPCh. 22 - Prob. 22.76CPCh. 22 - Why is it important for the cell that the NADH...Ch. 22 - Prob. 22.78CPCh. 22 - Prob. 22.79CPCh. 22 - Prob. 22.80CPCh. 22 - Prob. 22.81CPCh. 22 - Prob. 22.82GPCh. 22 - Prob. 22.83GPCh. 22 - It is important to avoid air when making wine, so...Ch. 22 - Prob. 22.85GP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
- Just as muscle cells produce lactate/lactic acid as a byproduct of fermentation, yeast cells produce ethanol (an alcohol) as a byproduct of fermentation. If you do not limit the amount of carbohydrate input to a system, how would you expect the rate of fermentation by yeast cells to proceed over time and why.arrow_forwardFermentations yield only a fraction of the energy available from the complete combustion of glucose. Why is a relatively inefficient metabolic pathway so extensively used?arrow_forwardWhat is the significance of the ΔG°’ value of each step of Glycolysis? Why do some values classify reactions as irreversible and others as easily reversible?arrow_forward
- In oxidative phosphorylation, how many molecules of ATP are produced per molecule of NADH in the mitochondrion?arrow_forwardTo reduce six molecules of carbon dioxide to one molecule of glucose via photosynthesis, how many molecules of NADPH and ATP are required?arrow_forwardThe complete combustion of palmitate and glucose yields 9781 kJ ∙ mol−1 and 2850 kJ ∙ mol−1 of free energy, respectively. Compare these values to the free energy (as ATP) obtained though catabolism of palmitate and glucose under standard conditions. Which process is more efficient?arrow_forward
- During cellular respiration, 60 molecules of CO2 were given off as waste. a. How many pyruvate molecules were produced in glycolysis? b. The total amount of ATP produced by complete cellular respiration would be? c. The amount of energy available (Net ATP) to cell as ATP would be?arrow_forwardWhen oxygen is not available, yeast cells can still do glycolysis to produce ATP. Under these conditions, why would yeast cells also need to do fermentation?arrow_forwardMaximal production of ATP from glucose involves the reactions of glycolysis, the citric acid cycle, and the electron transport chain. Which of these reactions requires O2, and why? Which, in certain organisms or physiological conditions, can proceed in the absence of O2?arrow_forward
- The energy stored in one molecule of NADH is used to synthesize how many molecules of ATP?arrow_forwardAfter pyruvate enters the mitochondria, what would be the maximum number of ATP molecules produced from the complete oxidation of one molecule of pyruvate ?arrow_forwardWhich statement is true about the process of fermentation? In fermentation, O2 is a terminal acceptor of electrons During fermentation, pyruvate or a byproduct of pyruvate gets reduced During fermentation, pyruvate or a byproduct of pyruvate gets oxidized During fermentation, ATP is consumed Fermentation takes place in the mitochondrial matrixarrow_forward
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