Toname: A substance in the envelope structure of some bacteria that can cause severe symptoms in humans. Concept introduction: A Danish physician, Hans Christian Gram developed a technique of staining that determines two groups of bacteria that differ from each other. Gram positive and Gram negative bacteria differs due to the differences in the peptidoglycan layer of the cell envelope. Cell envelope is composed of two or three layers- cell membrane, cell wall and the outer membrane (in some bacteria).

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Chapter 3.3, Problem 9AYP

Summary Introduction

Toname:

A substance in the envelope structure of some bacteria that can cause severe symptoms in humans.

Concept introduction:

A Danish physician, Hans Christian Gram developed a technique of staining that determines two groups of bacteria that differ from each other. Gram positive and Gram negative bacteria differs due to the differences in the peptidoglycan layer of the cell envelope. Cell envelope is composed of two or three layers- cell membrane, cell wall and the outer membrane (in some bacteria).

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