Topic 6 - Cause of death (bacteria and viruses)

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Match the names of bacterial structures to their description.

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Cell wall

Pilus

Ribosomes

Plasmids

Mesosome

Flagellum

Capsule

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Protein tubes allowing bacteria to attach to surfaces. Involved in cell to cell attachment.

Small circles/loops of DNA.

Made of polysaccharides cross-linked with peptide chains(peptidoglycan). Gram-negative have thinner walls.

Used for cell movement.

Mucus layer for protection and to prevent dehydration. Allows bacteria to form colonies.

Infolding of the cell surface membrane and site of respiration.

Site of protein synthesis. Occur free in cytoplasm.


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