Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 9, Cellular Respiration and Fermentation - Assessment - 91. Cellular Respiration: An Overview - Understand Key Concepts/Think Critically - Page 268: 9

Answer

The word "anaerobic" means "without oxygen." An anaerobic reaction does not require the presence of oxygen. The first part of cellular respiration is anaerobic. This first step is called glycolysis. The Krebs or citric acid cycle, which is the next step, is aerobic, meaning that the process needs oxygen to proceed.

Work Step by Step

The word "anaerobic" means "without oxygen." An anaerobic reaction does not require the presence of oxygen. The first part of cellular respiration is anaerobic. This first step is called glycolysis. The Krebs or citric acid cycle, which is the next step, is aerobic, meaning that the process needs oxygen to proceed.
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