All of the following structures contribute to the ability of the pathogenic bacteria to cause disease except for
A
Fimbriae
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B
Capsule
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C
Slime layer
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D
Inclusion bodies
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Solution
The correct option is D Inclusion bodies Inclusion bodies - These help in storing reserve material in the form of granules. Fimbriae are a major factor in bacterial virulence (the ability of a bacterium to cause disease) since these structures enable some bacteria to colonise human epithelial cells. The capsule is considered a virulence factor because it enhances the ability of bacteria to cause disease (e.g. prevents phagocytosis). The capsule can protect cells from engulfment by eukaryotic cells, such as macrophages. A glycocalyx is considered a slime layer when the glycoprotein molecules are loosely associated with the cell wall. The slime layer of Streptococcus allows the bacteria and others to accumulate on tooth enamel and cause plaque.I