L33

Question 1

What is koch’s postulates

Answer 1

Guidelines used to demonstrate that a specific pathogen causes specific disease symptoms

Question 2

What is the key stages of pathogenesis

Answer 2

1. Adherence
2. Invasion of host tissues
3. Replication in host tissues
4. Disease causing damage to host tissues

Question 3

Adherence virulence factors

Answer 3

Use of fimbriae to bind to host

Question 4

Invasion virulence factors

Answer 4

Motility (flagella)
Internalin related proteins

Question 5

Replication virulence factors

Answer 5

Siderophores (Takes iron from surroundings)
Capsules (resist phagocytosis)

Question 6

Disease virulence factors

Answer 6

Endotoxins: Cause inflammation
Exotoxins: Can be fatal

Question 7

What are endotoxins

Answer 7

released when bacteria dies: Are Lipopolysaccharides which elicits strong immune reponse

Causes inflammation, fever, blood clot, shock

Question 8

What are exotoxins and its 3 types

Answer 8

Produced in lliving bacteria then released into surrounding

Cytotoxins
Neurotoxins
Enterotoxins

Question 9

What are cytotoxins

Answer 9

Lysis of red blood cells

Question 10

What are neurotoxins

Answer 10

causes paralysis

Question 11

Enderotoxins

Answer 11

Cause gastrointestinal damage