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Principles of disease JK > An introduction to Bacteria > Flashcards

Flashcards in An introduction to Bacteria Deck (18):
1

Gram positive stain

Purple

2

Gram negative stain

Red

3

Fimbriae are for

Adhesion and attachment

4

What is the function of the capsule?

Defence mechanism as is slimy and prevents the bacteria from being phagocytosed

5

Flagellum are for

Movement

6

Gram positive have a thick or thin peptidoglycan layer?

Thick

7

Cocci

Spherical

8

Bacilli

Rod shaped

9

Coccobacilli

Intermediate form

10

Penicillin binding proteins

Associated with enzymes that synthesise peptidoglycan

11

Peptidoglycan

Strength and structure
Carbohydrate cross linked to amino acids

12

Lipopolysaccharide

Also know an endotoxin
Elicit immune response due to the presence of O antigen
Only found in gram negative

13

Spores - Gram positive or negative?

Gram positive only when nutrients are in low supply

14

Bacteriophage

A virus which eats bacteria by injecting their DNA which becomes incorporated into the bacterial genome and multiplies to eventually lyse the cell

15

First part of bacteria name is

Genus

16

Second part of bacteria name is

Species

17

Do species have similar characteristics?

Yes

18

How do you identify strains?

DNA typing techniques