Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
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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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 the following is one difference between fermentation and anaerobic respiration?
a.
Fermentation uses oxygen to produce ATP and anaerobic respiration does not
b.
Fermentation harvests more energy from each sugar molecule than anaerobic respiration.
c.
Anaerobic respiration utilizes an electron transport chain while fermentation does not
d.
Anaerobic respiration utilizes glycolysis while fermentation does not.
In the absence of oxygen, some organisms are able to convert glucose to energy via ________.
a.
aerobic cellular respiration
b.
fermentation
c.
regenerative glycolysis
Chapter 7 Solutions
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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- 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.arrow_forwardWhich of the following number of products from the Krebs Cycle is a manifestation of 4 pyruvate molecules generated from glycolysis? A. 2 ATP, 6 NADH, 2 FADH₂ B. 3 ATP, 9 NADH, 3 FADH₂ C. 4 ATP, 4 NADH, 4 FADH₂ D. 4 ATP, 12 NADH, 4 FADH₂arrow_forwardWhich of the following is NOT similar in lactic acid fermentation and alcoholic fermentation? a. Total number of net ATP b. Oxidizing agent of NADH c. Number of NAD+ regenerated d. Steps in glycolysis to produce pyruvatearrow_forward
- The committed step of glycolysis is catalyzed by which of the follwing enzymes? a. aldolase b. hexokinase c. Phosphofructokinase-1 d. Pyruvate kinasearrow_forwardWhich of the following statements concerning alcoholic fermentation is NOT true? a. It occurs under aerobic conditions in yeast. b. It converts pyruvate into ethanol and CO2. c. One molecule of NADH is consumed. d. It generates NAD+ for reuse by glycolysis.arrow_forwardWhich of the following reactions is aerobic and recycles NAD+molecules?a. glycolosis c. electron transport chainb. citric acid cycle d. fermentationarrow_forward
- During fermentation, which of the following generates ATP? a. substrate-level phosphorylation b. electron transport chain C. Oxidative phosphorylation d. chemiosmosis e. aerobic respirationarrow_forwardWhich of the following statements is correct? a. Glycolysis and Krebs cycle produce ATP in substrate level phosphorylation b. Glycolysis and Krebs cycle produce ATP in oxidative level phosphorylation. c. Glycolysis and pyruvate oxidation produce ATP in substrate level phosphorylation. d. Glycolysis and pyruvate oxidation produce ATP in oxidative level phosphorylation.arrow_forwardWhich of the statements is NOT TRUE about anaerobic respiration and fermentation? a. Anaerobic respiration has greater ATP output than fermentation. b. Both anaerobic respiration and fermentation does not require oxygen. c. Both anaerobic respiration and fermentation establish chemiosmotic gradients. d. Anaerobic respiration predominantly characterized by complete oxidation of substrate.arrow_forward
- The formula for one type of fermentation is: Glucose + CO2 + alcohol + ATP ...If yeast cells are given more sugar, then they will - A. Make less CO2 B. Make more ATP C. Be poisoned by alcohol D. Be poisoned by oxygenarrow_forwardWhich 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_forwardFermentation only generates _________ net ATP per glucose molecule and goes through both _________________ and the _________________. Select one: a.2 / conversion of pyruvate into a waste product / Citric Acid Cycle b.4 / Glycolysis / Electron Transport Chain c.2 / Glycolysis / Citric Acid Cycle d.None of the Above e.2 / Glycolysis / Transition Reactionarrow_forward
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