Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 7, Problem 19CTQ
Nearly all organisms on Earth carry out some form of glycolysis. How does this fact support or not support the assertion that glycolysis is one of the oldest
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Both prokaryotic and eukaryotic organisms carry out some form of glycolysis. How does that fact support or not support the assertion that glycolysis is one of the oldest metabolic pathways?
Why does glycolysis require ATP investment on a thermodynamic and molecular level?
Of the 36 molecules of ATP produced by the complete metabolism of glucose, how many are produced directly in glycolysis alone, that is, before the common pathway?
Chapter 7 Solutions
Biology 2e
Ch. 7 - Figure 7.11 Dinitrophenol (DNP) is an "uncoupler"...Ch. 7 - Figure 7.12 Cyanide inhibits cytochrome c oxidase,...Ch. 7 - (Figure 7.14) Tremetol, a metabolic poison found...Ch. 7 - The energy currency used by cells is ATP ADP AMP...Ch. 7 - A reducing chemical reaction. reduces the compound...Ch. 7 - During the second half of glycolysis, what occurs?...Ch. 7 - What is removed from pyruvate during its...Ch. 7 - What do the electrons added to NAD+ do? They...Ch. 7 - GTP or ATP is produced during the conversion of...Ch. 7 - How many NADU molecules are produced on each turn...
Ch. 7 - What compound receives elections from NADH? FMN...Ch. 7 - Chemiosmosis involves. the movement of electrons...Ch. 7 - Which of the following fermentation methods can...Ch. 7 - A major connection for sugars in glycolysis is...Ch. 7 - Beta-oxidation is. the breakdown of sugars the...Ch. 7 - The effect of high levels of ADP is to__inv __...Ch. 7 - The control of which enzyme exerts the most...Ch. 7 - Why is it beneficial for cells to use ATP rather...Ch. 7 - Nearly all organisms on Earth carry out some form...Ch. 7 - Because they lose their mitochondria during...Ch. 7 - What is the primary difference between a circular...Ch. 7 - How do the roles of ubiquinone and cytochrome c...Ch. 7 - What accounts for the different number of ATP...Ch. 7 - What is the primary difference between...Ch. 7 - Would you describe metabolic pathways as...Ch. 7 - How does citrate from the citric acid cycle affect...Ch. 7 - Why might negative feedback mechanisms be more...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Based on your knowledge of the structure of NAD+ and an assumption that coenzyme dissociation is the rate limiting step of the alcohol dehydrogenase mechanism, hypothesize why a N249W mutation at the coenzyme binding site would increase the rate of catalysis.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_forwardWhy is this reaction crucial to ATP synthesis in glycolysis?arrow_forward
- why is the citric acid cycle is located in close cellular proximity to the electron transport chain?arrow_forwardThe citric acid cycle operates only when O2 is present, yet O2 is not a substrate for the cycle. Explain.arrow_forwardThe intermediates of glycolysis are phosphorylated, but those of the citric acid cycle are not. Suggest a reason why.arrow_forward
- Glycolysis can occur under both aerobic and anaerobic conditions. Why is glycolysis called an anaerobic pathway?arrow_forwardwhat metabolic process is this, and why?arrow_forwardWhy is the enzyme-catalyzed introduction of carbon–carbon double bonds into fatty acids called an electron transport system?arrow_forward
- Why are the first three steps in cellular respiration considered catabolic?arrow_forwardYou have isolated a heterotrophic bacterium from the soil that has a mutation in the enzyme aldose, making it unable to produce glyceraldehyde 3-phosphate, or hydroxyacetone monophosphate. What consequences would this have on glycolysis? What other metabolic pathway could it use to produce energy? .Why? Explain the route you chose.arrow_forwardOther than oxidative phosphorylation, what other metabolic pathway does "Complex 2" participate in? 1. Glycolysis 2. Gluconeogenesis 3. Lactic acid fermentation 4. Citric acid cyclearrow_forward
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