Introduction

Question 1

pathogen

Answer 1

• a microbe that is capable of causing host damage

Question 2

pathogenicity

Answer 2

• the ability to produce disease

Question 3

virulence (2)

Answer 3

• degree of pathogenicity
• only expressed in a susceptible host

Question 4

gram negative bacteria (2)

Answer 4

• thin peptidoglycan cell wall, surrounded by outer membrane containing lipopolysaccharide
• double membrane

Question 5

gram positive bacteria (2)

Answer 5

• lack an outer membrane
• surrounded by thick peptidoglycan cell wall