問題一覧
1
The term mycosis defines:
A disease caused by a fungus.
2
Which of these systemic fungal agents can occur in dogs/cats in the UK?
Cryptococcus neoformans
3
What is the difference between Mycoplasma and Mycobacteria?
Mycobacteria are acid fast, Mycoplasma have no cell wall.
4
Put the following in order or most to least resistant? a) Mycobacteria b) Prions c) Gram positive d) Gram negative
b > a > d > c
5
Routine sterilisation normally involves:
121.5 for 15 mins
6
What is typically used in gene cloning to generate a recombinant protein?
Transformation
7
Which teqnique best allows discrimination within species of a bacteria?
MLST
8
Which is true about quorum sensing?
It allows bacteria to determine when there is a higher density of cells to switch on specific genes.
9
Which of the following statement is TRUE about Bacillus anthracis?
It’s toxins includes Eden’s and lethal factors
10
Which of the following is true concerning action if botulinum toxin?
It causes weak or flaccid paralysis
11
Which if the following toxins is primarily associated with necrotic enteritis in chickens?
NetB toxin
12
Differential diagnosis for unvaccinated unconditioned 6 month old lamb found dead after being moved onto lush pasture recently?
Pulpy kidney disease
13
What is the target of B-lactam drugs (eg. penicillin) in bacteria?
Cell wall
14
Which of the following does NOT represent AMR mechanism in bacteria?
Conjugation
15
What bacteria are stained by Ziehl Neelsen method - seen microscopically as bright red?
Mycobacteria
16
Which staining is used for presumptive diagnosis of ringworm?
10% KOH + blue Parker ink
17
Beta-haemolytic bacteria show what on blood agar?
Yellow agar around colony
18
Which of the following media can differentiate between Salmonella spp. and E.coli?
XLD
19
Order of reagents in Gram staining?
Crystal violet, iodine, alcohol, safranin
20
Why is a live vaccine more effective than killed/inactivated vaccine?
Induces both antibody and cellular response
21
Which of the following in vaccine formation is responsible for helping with development of immune response against the antigen?
Adjuvant
22
How is a pathogen attenuated?
Repeated passage in growth media away from host
23
Staphylococci can be differentiated from streptococci by what test?
Catalse
24
Key feature which allows mycobacteria to cause disease?
Ability to survive in macrophages
25
What is a key distinguishing feature to separate MTBC, MAC and leprosy mycobacteria?
Each group distinguished based on location of primary tissue infected and disease symptoms presented