Q.Name the three forms the glycocalyx layer of a bacterial cell envelope may take, depending on the organism and its chemical composition.

[!TLDR]

The glycocalyx may be a thick capsule, a loose slime layer, or only loosely organised, depending on the species.

[!ANSWER]

A well-organised, thick capsule; a loose, diffuse slime layer; or, in some bacteria, only a loosely organised or minimal layer.

The outermost layer of the bacterial cell envelope, the glycocalyx, is built mainly of polysaccharides but varies considerably in organisation between species. In some bacteria it forms a thick, well-defined, tightly organised layer called a capsule; in others it forms a much looser, more diffuse, easily removed layer called a slime layer; and in still others it may be only loosely organised or minimally developed.

[!ANSWER]

A well-organised, thick capsule; a loose, diffuse slime layer; or, in some bacteria, only a loosely organised or minimal layer.

Recall the three descriptive forms the outermost glycocalyx layer of the cell envelope can take.

Confusing the glycocalyx (outermost layer) with the cell wall (middle layer) -- they are distinct layers of the cell envelope.