Microbiology with Diseases by Body System (5th Edition)
Microbiology with Diseases by Body System (5th Edition)
5th Edition
ISBN: 9780134477206
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 11, Problem 1TMW
Summary Introduction

To tell:

Why binary fission generates chains of cocci in some species and cluster of cocci in some other strains.

Introduction:

Prokaryotes widely exist in three different shapes: spherical (cocci), rod (bacilli), and spiral (spirochetes). An example for a spherical-shaped bacterium is Staphylococcus sp. Staphylococcus is a gram-positive cocci structured as grape-like clusters. If viewed under a microscope, these bacteria appear as round and are clustered together.

Expert Solution & Answer
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Explanation of Solution

The prokaryotic cells are arranged in different forms during binary fission. For example, cocci in chains (streptococci) result from the division in one plane and when daughter cells fail to separate. Cocci in irregular or grape-like (staphylococci) arrangement is due to cell division in three planes and daughter cell failing to separate.

Conclusion

The prokaryotic cells exist in different forms (cocci in chain, pairs, and in grape-like structures).

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Microbiology with Diseases by Body System (5th Edition)

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