Unit 9 Host‐bacteria relationships Flashcards
The ability to produce disease is:
A- Pathogenicity
B- Virulence
Pathogenicity: The ability to produce disease.
The degree of pathogenicity is:
A- Pathogenicity
B- Virulence
Virulence is the degree of pathogenicity.
Multiplication of the pathogen in the host is:
A- Infection
B- Disease
Infection is Multiplication of the pathogen in the host.
Alterations in the physiology of the host due to the infection is:
A- Infection
B- Disease
Disease: Alterations in the physiology of the host due to the infection.
Which enzymes can damage connective tissue?
A- Collagenase
B- Hyalouronidase
C- Proteases
Collagenase and hyalouronidase: Damage
connective tissue.
What is the purpose of Proteases?
It’s an enzyme who destroy proteins such as
immunoglobulins, leukocidin, lecithinase
and phospholipase C.
Exotoxin is encoded by? A- Organelles B- Plasmids C- Mitochondrias D- Phages
Encoded by plasmids or phages.
Where is secreted the exotoxins? A-Cytoplasm B- Cytoskeleton C- RER D- Medium
Secreted into the medium in soluble form.
Exotoxins is:
Gram +
Gram -
Both Gram + and Gram -
Endotoxins is:
Gram +
Gram -
Gram -
Endotoxins is encoded by? A- Organelles B- Plasmids C- Chromosomes D- Phages
Encoded on chromosome
What is a toxic shock?
Multiorganic failure.
When the host can not control the response of the systemic
Which of the Gram + or Gram - has a long O side chain (LPS)?
Gram -
Which of the Gram + or Gram - has LPS linked to sialic acid?
Gram -
Streptococcus viridans can be found in which area of the body?
Mouth, pharynx, respiratory system
Staphylococus haemolyticus can be found in which area of the body?
Skin
Virus is prokaryote or eukaryote?
NONE, it’s acellular
What is the other name of commensals?
Mutualist
What is commensals?
Non pathogenic microorganisms
but under some conditions it can be pathogenic
