Bacteria Flashcards
1
Q
What is bacterial capsule
A
Bacterial capsule is a gelatinous layer,covering the entrire bacterium,situated outer to the cell wall
2
Q
Functions of capsule
A
It prevents phagocytosis
Adhesion to host cell surface
Invasiveness
3
Q
Importance of bacterial capsule
A
It is a determinant of virulence of bacteria
Specific identification of a bacteria can be made
Capsular polysaccharides are used as the antigens in certain vaccines
The capsule may play a role in the adherence to human tissues
4
Q
Dysentery is caused by
A
E.coli(most common all over the world)
Shigella
Salmonella
Yersinia
Campylobacter (most common in children )
Clostridium spp
