Why do some microbes produce fermentation end products under anaerobic conditions? O A. to make glucose OB. to regenerate NAD* so glycolysis can continue O C. to store these products as energy sources and use them when glucose is unavailable O D. to generate ATP

Why do some microbes produce fermentation end products under anaerobic conditions? O A. to make glucose OB. to regenerate NAD* so glycolysis can continue O C. to store these products as energy sources and use them when glucose is unavailable O D. to generate ATP

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter7: Releasing Chemical Energy

Section: Chapter Questions

Problem 3SA: Which of the following pathways requires molecular oxygen (O2)? a. aerobic respiration b. lactate...

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Concept explainers

Photosynthesis

Plants have a capacity that we humans can only imagine— the ability to produce food from sunlight. Sure, we can prepare some dishes that we can savor on, but it become possible because of the plants (as they serve as a producers of all the raw materials required). Photosynthesis is the method of assembling carbohydrates with the aid of sunlight.

Question

Why do some microbes produce fermentation end products under anaerobic conditions?
O A. to make glucose
OB. to regenerate NAD* so glycolysis can continue
O C. to store these products as energy sources and use them when glucose is unavailable
O D. to generate ATP

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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 cell
NADH is reozidized by which if the following processes? A. Glycolysis B. Fermentation C. Krebs cycle D. Electron transport chain E. Light reactions to photosynthesis
The effect of high levels of ADP is to_inv_cellular respiration. a. increase the activity of specific enzymes b. decrease the activity of specific enzymes c. have no effect on the activity of specific enzymes d. slow down the pathway
Which of these is not true of fermentation?a. There is a net gain of only two ATP per glucose.b. It occurs in cytoplasm.c. NADH donates electrons to the electron transport chain.d. It begins with glucose.e. It is carried on by yeast.
In glycolysis, NADH molecules are created. Where do these molecules go next? Group of answer choices a)P700 b)electron transport chain c)fermentation d)pyruvate oxidation e)Krebs cycle
Which of these is incorrect regarding fermentation?a. There is a net gain of only two ATP per glucose.b. It occurs in the cytoplasm.c. The process starts with glucose entering glycolysis.d. NADH donates electrons to the electron transport chain.e. It is anaerobic.
Which feature of anaerobic and aerobic respiration is different? Select one: a.Use of electron transport system b.Use of the Electron Donor c.Use of proton motive force d.None of the Above e.Use of the Electron Acceptor
One of the main differences between aerobic respiration and fermentation is _________. a. fermentation occurs only in prokaryotic cells b. ATP forms only in aerobic respiration c. fermentation uses no electron transfer chains d. aerobic respiration requires no oxygen
Which of these is not true of the electron transport chain?a. The electron transport chain is located on the cristae of themitochindria.b. The electron transport chain produces more NADH than anymetabolic pathway.c. The electron transport chain contains cytochrome molecules.d. The electron transport chain ends when oxygen acceptselectrons.
During aerobic cell respiration most of the energy isproduced during:(a) Krebs cycle (b) Glycolysis(c) Fermentation (d) ATP→ ADP(e) Electron transport chain reactions
Which 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 enzymes
Which of the statements about alcohol producing fermentation is FALSE? a) Lactic acid may be produced as a byproduct b) It produces CO2 c) It allows the cell to continue producing ATP when oxygen is low d) It generates more ATP than aerobic respiration