Structure of the Bacterial Cell

The structural form and various components of the bacterial cell are probably best understood by referring to the simplified diagram of a rod-form bacterium shown in Figure 8.3.

Chloroplast

Figure 8.2 Plant cell.

Ribosomes

Flagellum

Inclusions

Nuclear material

Mesosome

Cell wall

Cytoplasm

Cell membrane

Capsule

Ribosomes

Flagellum

Inclusions

Nuclear material

Mesosome

Cell wall

Cytoplasm

Cell membrane

Capsule

Figure 8.3 Bacterial cell.

Note: When studying Figure 8.3, keep in mind that cells of different species may differ greatly, both in structure and chemical composition; for this reason, no typical bacterium exists. Figure 8.3 shows a generalized bacterium used for the discussion that follows. Not all bacteria have all of the features shown in the figure, and some bacteria have structures not shown in the figure.

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