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- Why is it important to regenerate NAD+ during fermentation?a. It helps maintain the reactions of glycolysis.b. So that it can transfer an electron to the electron transport chainc. To maintain the concentration of pyruvate in a celld. To produce alcohol or lactic acid for the cellWhich of the following best defines fermentation? A) The reduction of metabolic intermediates to regenerate NAD from NADH B) The production of CO2 by the enzymes of the TCA cycle C) The dumping of electrons onto acceptors such as NO3 by the electron transport chain D) The oxidation of metabolic intermediates to regenerate NAD from NADH E) The production of ATP by glycolytic enzymesFermentation utilizes which of the following processes? a) glycolysis b) citric acid cycle c) electron transport chain d) photosynthesis
- What is the importance of fermentation to cellular metabolism? a. It generates glucose for the cell in the absence of O2. b. It oxidizes NADH to NAD+ during electron transport. c. It oxidizes NADH to NAD+ in the absence of O2. d. It reduces NADH to NAD+ in the absence of O2.When oxygen is unavailable, some cells use anaerobic (fermentation) pathways to make ATP. Another textbook says regarding fermentation: "The final steps serve only to regenerate NAD+." What does this statement mean? Explain using examples of specific fermentation pathways.What is the difference between cellular respiration and fermentation? Select an answer. a) cellular respiration does not need oxygen, while fermentation needs oxygen b) cellular respiration needs oxygen, while fermentation does not need oxygen c) cellular respiration produces very little energy, while fermentation produces a lot of energy d) Almost all cells carry out fermentation, while few carry out cellular respiration
- Fermentations yield only a fraction of the energy available from the complete combustion of glucose. Why is a relatively inefficient metabolic pathway so extensively used?Which two processes lead directly to the production of large amounts of ATP by the enzyme ATP synthase? A. The electron transport chain B. Fermentation C. The Krebs cycle D. Glycolysis It needs two answer there can be two answer alsoWhen animals carry out fermentation, they produce ————, while yeasts produce ————. lactate, NADH lactate, ethyl alcohol and CO2 NADH, ethyl alcohol and CO2 FADH2, lactate ethyl alcohol and CO2, lactate
- 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.Which of the following is true concerning the comparison of fermentation to aerobic cellular respiration? a) Both require oxygen. b) Fermentation extracts less energy. c) Fermentation produces only alcohol. d) All of the above are true. e) None of the above is true.All types of fermentation are necessary to ________. a. produce gases required by the environment b. ensure an adequate supply of NAD+ is regenerated c. ensure an adequate supply of ATP is regenerated