Question

what is the cell envelope and it's modification?​

Answer 1

Answer:

The cell envelope comprises of three layers: the outermost glycocalyx, the cell wall and the plasma membrane. All the three layers together act as a single protective unit. Bacteria is classified into two groups based on the response to the gram staining method

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Answer 2

Explanation:

The cell envelope comprises the inner cell membrane and the cell wall of a bacterium. In gram-negative bacteria an outer membrane is also included.[1] This envelope is not present in the Mollicutes where the cell wall is absent.

Bacterial cell envelopes fall into two major categories: a gram-positive type and a gram-negative type, distinguished by Gram staining. Either type may have an enclosing capsule of polysaccharide for extra protection. As a group these are known as polysaccharide encapsulated bacteria.