Pathogenisi

Question 1

Mutoalisim bacteria

Answer 1

Lactic acid bacteria

Question 2

Commonsalisim bacteria

Answer 2

Staphylococcus epidermis

Question 3

Opportunistic

Answer 3

Microorganisim rarely caused disease but cause a serious infection in immunocompromised patient (parasites/normal flora)

Question 4

Virulence

Answer 4

The degree of pathogenicity, quantitive measure by the number of microorganisms recuired to cause disease

Question 5

Potential pathogenesis(opportunistic)

Answer 5

-s.pneumonia
-s.epedermis
-h.influenzae
Commensal/parasite without disease

Question 6

Obligate pathogenesis

Answer 6

Organisim can’t survive along without a host to cell cycle

Question 7

Obligate intracellular

Answer 7

Bacteria can grow just within host cells

Chlamydia/ricktessiae

Question 8

Facultative parasite

Answer 8

Bacteria growth inside/outside host cells or in bacteriomedia

Question 9

What is the important factors determine the infection

Answer 9

1-the number of microorganisim in host
2-pathogen virulence
3-the virulence factors (endotoxin type/capsule/pilli…)

Question 10

Non-communicable bacteria

Answer 10

Botulisim , produce exotoxin in the food

Question 11

Communicable bacteria

Answer 11

Tuberculosis by coughing

Question 12

What cause the invasive bacteria

Answer 12

Induce inflammatory cells and cause redness(erythema)/warmth/edema/pain

Question 13

Bacteria in Chronic carrier state

Answer 13

Typhoid mary

Growth the microorganism and cause infection with or without symptoms

Question 14

Transplacental pathogens

Answer 14

1-cytomegalovirus 
2-barvovirus
3-treponema pallidum 
4-toxoplasma gondi
5-listeria

Question 15

Canal birth during birth pathogen

Answer 15

1-herpes simplex 2 virus
2-hepatinic b virus
3-human immunodeficiency virus
4-candia albecans
5-chlamydia
6-esharichea
7-streptococcus group b

Question 16

Breast milk pathogen

Answer 16

1-s.aureus
2-cytomegalovirus
3-human t-cell leukemia virus

Question 17

Bacteria transmitted by ticks

Answer 17

Borrelia (lyme disease)

Riktissea (rocky mountain fever)

Question 18

The symptoms of lyne disease

Answer 18

Fever
Fatigue
Headache
Erythema migrans

Question 19

The important portals to entry pathogens

Answer 19

• gastrointestinal tract
• respiratory tract
• skin
• genital tract

Question 20

What is the bactria adherence in urinary tract epithelium and what is the adhesions structure

Answer 20

N.gonorhoae and e.coli by pilli

Question 21

What is Bactria adherence in endothelial valve and what is the adhesins structure

Answer 21

Staphylococcus epidermis/varidans

Glycosalyx

Question 22

Which of bacteria persists in lungs of cystine fibrosis patient ,by which virulence factor

Answer 22

Pseudomonas bacteria by forming biofilms

Question 23

Quorum sensing

Answer 23

Bacteria grow with nonaggressive manner until to reach to specific density to form virulence factors and be pathogen (like pseudomonas when form biofilms)

Question 24

What means in curli, and what do in body

Answer 24

Curli is the surface of protiens binding bacteria with endothelial and ECM (fibronicten)
Interaction with coagulation factor and produce thrombus (dissiminated intravascular coagulation)
In e.coli/salmonella

Question 25

Bacteria formed collagenase/ hyaluronidase

Answer 25

S.pyogenes

Question 26

Bacteria produce coagulase

Answer 26

S.aureus

Question 27

Bacteria produce IGA protease

Answer 27

H.influinza
N.gonorhoae
S.pneumonia

Question 28

Antiphagocytic factors

Answer 28

1-capsule
2- M-protien , found in gram+ cocci in cell wall (group A s.pyogens)
3-A-protein , found in s.aureus