Biology: The Unity and Diversity of Life (MindTap Course List)
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
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