Microbiology: A Systems Approach
Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 4, Problem 3MCQ
Summary Introduction

Introduction:

Bacterial cells protect themselves from environmental conditions with either S layer or glycocalyx. S layer is single layers of a protein linked together to form a chain. The function of this layer is to armor the bacterial cell. Glycocalyx is a sticky and gelatinous substance that surrounds the cell from outside.

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Mesohyl contains: a. a polysaccharide gel and dead cells. b. a collagen-like gel and suspended cells for various functions. c. spicules composed of silica or calcium carbonate. d. multiple pores.
A meristematic cells a. Are dead b. Have a high cytosol/nucleus ration c. Have a few proplastids d. Have lignified cell walls
An example of a glycocalyx isa. a capsule c. outer membraneb. pili d. a cell wall

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Microbiology: A Systems Approach

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