exam

An alternative name for bacterial pili is:

fimbriae

1 of 22

Phage (or lysogenic) conversion can lead to

alteration of the bacterial phenotype

2 of 22

Malaria is caused by infection with Plasmodium parasites. Which species causes the most severe form of malaria in the human population?

Plasmodium falciparum

3 of 22

Protozoa parasites are classified according to their motility. Which parasites move by the actin-myosin motor complex

Apicomplexa

4 of 22

A large fluid filled lesion (>1cm) due to an infectious agent is known as a

bulla

5 of 22

Which organism is responsible for gas gangrene?

Clostridium perfrigens

6 of 22

Many bacterial species are capable of causing meningitis, but there are five species, which are responsible for 90% of all bacterial meningitis cases. These are Haemophilus influenzae, Neisseria meningitidis, Listeria monocytogenes, Staphylococcus au

Streptococcus pneumoniae

7 of 22

Septicaemia (an active microbial infection of the blood) is also known as

sepsis

8 of 22

Approximately, how many types of cold viruses are responsible for rhinitis in humans?

>200

9 of 22

Typical pneumonia is caused by which infectious agent?

Streptococcus pneumoniae

10 of 22

The presence of white blood cells (pus cells) in urine with negative microbial culture is known as:

sterile pyuria

11 of 22

Which of the following is not a sexually transmitted disease? a) gonorrhoea b) AIDS c) shingles d) chlamydia e) syphilis

aids

12 of 22

Which of the following antimicrobials inhibits bacterial protein synthesis? a) tetracycline b) penicillin c) polymyxin B d) rifampin e) sulphur drugs

tetracycline

13 of 22

A potential alternative to antibiotics for human use in the fight against bacterial infections and the emergence of antibiotic resistance is ?

phage therapy

14 of 22

Food poisoning can be caused by many different types of bacteria. As a percentage of estimated deaths versus cases of infection, which species is generally responsible for the highest mortality rate?

Campylobacter jejuni

15 of 22

Campylobacter is responsible for the majority of cases of food poisoning in the UK, but which of these represents its atmospheric requirements for culture in the laboratory?

Facultative anaerobe

16 of 22

Which of the following is a secreted pattern recognition receptor (PRR)? a) B-cell receptor b) T-cell receptor c) NOD-1 d) Mannose binding lectin e) Activated protein C

mbl

17 of 22

Chronic Granulomatous Disease (CGD) is due to defects in the activity of: a) xanthine oxidase b) NADPH oxidase c) acetyl hydrolase d) Nitric Oxide Synthase e) alcohol dehydrogenase

NADPH oxidase

18 of 22

Recognition of bacterial lipopolysaccharide by macrophages is mediated by: a) Neonatal Fc receptor b) TLR4 c) TLR5 d) TLR9

TLR4

19 of 22

Which of the following is NOT a secondary lymphoid organ/tissue? a) Lymph nodes. b) Mucosal-associated lymphoid tissue (MALT). c) Spleen. d) Bone marrow. e) Payer’s patches

Bone marrow

20 of 22

Which of the following cytokines promotes differentiation of a newly activated naïve CD4+ T cell along the T helper 2 (Th2) lineage? a) IL-4. b) IL-12. c) IL-2. d) TGF. e) None of the above.

il2

21 of 22

Lymph: which of the following statements is CORRECT? a) It is pumped around the body under pressure by peristaltic action. b) It drains from tissues into blood capillaries. c) It is a distinct fluid not derived from blood plasma. d) It carries antige

d

22 of 22

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