PRESCOTT'S MICROBILOGY
PRESCOTT'S MICROBILOGY
11th Edition
ISBN: 9781264075515
Author: WILLEY
Publisher: MCG
Question
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Chapter 34, Problem 1RC
Summary Introduction

To determine: The difference between the growth and physiology of obligate, facultative anaerobes, and strict anaerobes.

Introduction: An anaerobic or anaerobe is an organism that does not require oxygen for growth and development. An anaerobe may be unicellular or multicellular. Anaerobes are divided into three types: Obligate anaerobes, Strict anaerobes, and facultative anaerobes.

Expert Solution & Answer
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Explanation of Solution

S.noCharacteristicsFacultative anaerobesObligate anaerobesStrict anaerobes
1.DefinitionIt is an anaerobe that makes ATP in aerobic conditions but can shift to anaerobic fermentation as well.Obligate anaerobes cannot produce ATP in the presence of oxygen.Strict anaerobes are the organism that cannot grow in more than five micro M of dissolved oxygen.
2.Can survive prolonged oxygenyesNoNo
3.ExampleE.coliClostridium botulinumPhyromonasginngivalis
4Contain enzymesThey contain superoxide dismutase and catalaseThey contain superoxide dismutase and catalaseThey lack this enzyme

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