MindTap Biology, 1 term (6 months) Printed Access Card for Starr/Taggart/Evers/Starr's Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305269842
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 7, Problem 10SQ
Summary Introduction
Introduction: Fermentation reactions do not require oxygen as an electron acceptor, but the final electron acceptor is an organic molecule (acetaldehyde in alcoholic fermentation or pyruvate in lactate fermentation). Fermentation begins with glycolysis that yields 2ATP, 2NADH, and 2 pyruvates. The final steps of fermentation regenerate NAD+ which is required to continue glycolysis, but they produce no ATP. Thus, breakdown of one glucose molecule yields only two ATPs from glycolysis.
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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 also
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
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
Chapter 7 Solutions
MindTap Biology, 1 term (6 months) Printed Access Card for Starr/Taggart/Evers/Starr's Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 7 - Is the following statement true or false? Unlike...Ch. 7 - Glycolysis starts and ends in the ___. a. nucleus...Ch. 7 - Which of the following metabolic pathways...Ch. 7 - Which molecule does not form during glycolysis? a....Ch. 7 - Prob. 5SQCh. 7 - Which of the following reaction pathways is not...Ch. 7 - Prob. 7SQCh. 7 - Prob. 8SQCh. 7 - Prob. 9SQCh. 7 - Mitochondrial Abnormalities in Tetralogy of Fallot...
Ch. 7 - Mitochondrial Abnormalities in Tetralogy of Fallot...Ch. 7 - Mitochondrial Abnormalities in Tetralogy of Fallot...Ch. 7 - Prob. 10SQCh. 7 - Most of the energy that aerobic respiration...Ch. 7 - Prob. 12SQCh. 7 - Prob. 13SQCh. 7 - Prob. 14SQCh. 7 - Match the term with the best description. _____...Ch. 7 - Prob. 1CTCh. 7 - As you learned, membranes impermeable to hydrogen...Ch. 7 - Prob. 3CT
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- NAD+ is regenerated duringa. glycolysis.b. fermentation.c. the Krebs cycle.d. the formation of acetyl-CoA.arrow_forwardWhich 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.arrow_forwardWhat do the electrons added to NAD do? a. They become part of a fermentation pathway. b. They go to another pathway for ATP production. c. They energize the entry of the acetyl group into the citric acid cycle. d. They are converted into NADP.arrow_forward
- 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.arrow_forwardAll stages of cellular respiration are decreased in conditions of insufficient oxygen except a. glycolysis. b. the intermediate stage. c. the citric acid cycle. d. the electron transport system.arrow_forwardThe process of ________ requires carbon dioxide to begin. a. cellular respiration b. lactic acid fermentation c. photosynthesisarrow_forward
- 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 enzymesarrow_forwardWhich of these statements is true? a.Glycolysis is the process that builds glucose. b. Cellular respiration requires light to complete the process c. Lactic acid fermentation provides energy when oxygen is present. d. Carbon dioxide is produced during respiration.arrow_forwardThe energy that is used by almost all living things on our planet comes from the sun. It is captured by plants, algae, and some bacteria through the process ofa. respiration. c. photosynthesis.b. the Krebs cycle. d. fermentationarrow_forward
- Fermentation utilizes which of the following processes? a) glycolysis b) citric acid cycle c) electron transport chain d) photosynthesisarrow_forwardWhich 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.arrow_forwardThe metabolic process that produces the most ATP molecules isa. glycolysis.b. the citric acid cycle.c. the electron transport chain.d. fermentation.arrow_forward
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