To determine: The diagrammatic representation of a Gram-negative bacterial cell wall and its constituent parts.
Introduction: The plasma membrane of the bacteria is surrounded by a layer known as the cell wall. Cell wall helps in maintain the shape of the cell and also protects it from osmotic lysis. In some organism, it protects the cells from the toxic substances, whereas in some it contributes to pathogenicity. Based on

Explanation of Solution
Pictorial representation:
Fig.1: Diagrammatic representation of the cell wall of Gram-negative bacteria
The cell wall of Gram-negative bacteria consists of two different layers: 2-7 nm thick peptidoglycan layer, which is covered by a 7-8 nm thick outer membrane. There is also some space between the plasma membrane and the outer membrane known as periplasmic space and periplasm is the substance which occupies periplasmic space.
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Chapter 21 Solutions
PRESCOTT'S MICROBILOGY
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