Structure of Bacterial Cell

background Q P O N M L K J I H G F E D C B A outline

Flagellum

Thin filament(s) found singly or in tufts used for motility.

Plasmid

Double-stranded DNA circle containing extra genes.

Bacterial Microcompartments

Protein coated packet containing enzymes/proteins.

Inclusion/Granule

Stored nutrients (fat, phosphate or gylcogen)
in dense granules.

Capsule

Outermost layer serving protective, adhesive and receptor type functions.

Pilus

Appendage for attachment
to another bacteria, used to transfer DNA.

Actin Cytoskeleton

Long supportive protein fibers inside cell membrane.

Cell Wall

Semirigid casing that provides structural support.

Outer Membrane

Extra membrane containing lipopolysaccharide found in some bacterial.

Fimbriae

Fine, hairlike bristles extending from cell surface for adhesion.

S Layer

Monolayer of protein used for protection and/or attachment.

Cytoplasm

Water-based solution filling the entire cell.

Ribosomes

The site of protein synthesis; made of protein & rRNa.

Bacterial Chromosome
or Nucleoid

Condensed circular DNA; contains instructions for making all bacterial proteins.

Cell (cytoplasmic) Membrane

The phospholipid bilayer and protein membrane that surrounds the cytoplasm.

NULL

NULL

( ? )