Swinburne TAFE
Semester 2, Term 4,
2007-11-06
Theory Test 4
Name:
Student
Number:
.
Time
Allowed: 1 hour 30 minutes
Results
and answers to questions must be clearly.
Responses
not clearly written may be marked incorrect.
A
mark of 50% is required to pass this test.
Marks: /50
% PASS / FAIL
Questions
1. What are the factors called that
enable bacteria to cause disease?
(1)
2. What must occur for a
bacterium to establish an infection
(2)
3. Do all infections cause
disease? Explain.
(2)
4. Can an infection be
beneficial to the host? If so. How?
(2)
5. What are two virulence
factors that aid invasiveness?
(2)
6. What are two effects of
endotoxin?
(2)
7. What is common about all bacteria that produce endotoxin
(1)
8. Identify three types of
exotoxin
(3)
9. How can antigens cause
disease symptoms
(2)
10. Identify
three virulence factors that assist invasiveness.
11 Name two genera of bacteria can cause both sexually
transmitted disease (STD) as well as eye infections
(2)
12. Complete the following
table:
Organism |
Disease |
Organism
type |
Site
of infection |
Chlamydia trachomatis. |
trachoma |
Bacteria |
conjuctiva |
Salmonella. |
|
|
|
|
cellulitis |
|
|
|
SSSS |
|
|
|
Conjental cateracts |
|
|
|
|
bactria |
uretha |
|
scabies |
|
|
Bacteroides fragilis
. |
|
|
blood: |
Clostridium perfringens |
|
|
wounds |
Clostridium difficile: |
|
|
|
(12)
13. Identify two bacteria that can cause otitis
media
(2)
14. Identify two bacteria that can cause otitis
externna
(2)
15.
Which of the above (13 or 14) is sometime called swimmers ear
(1)
16.
Which of the above (13 or 14) may involve the tympanic membrane
(1)
17
What is the most likely route for bacteria to enter the middle ear?
(2)
18 Why do infants get more middle ear
infections than adults?
(2)
19.
What organism is likely to cause conjunctivitis in the new borne?
(2)
20.
What part of the eye is damaged with keratitis?
(1)
21. What are two vectors can cause damage
resulting in keratitis?
(2)
22. What is a common cause of endophthalmitis?
(1)
23.
Keratitis can sometime be caused by dead bacteria. What kind of toxin might
cause this kind of inflammation?
(1)
24
How can lipopolysaccharide (LPS) be tested for?
(1)
25. What is the meant by the
term pathogenicity?
26. What are 4 major virulence factors?
(4)
27. What is the most common cause of UTIs?
28. What is the normal success on bacterial goups
in an infected wound?
29
Give an example of symbiosis between groups of bacteria infecting a wound.
In which part of the body are the following bacteria
found as normal flora?
Propionibacterium
acnes |
|
Clostridium perfringens |
|
Bacteroides fragilis |
|
Staphylococcus
areus |
|
|
|
|
|
(1)