A M protein

B Pyrogenic exotoxin

C Streptolysin 0

D Carbohydrate cell wall

A Type I hypersensitivity

B Type II hypersensitivity

C Type III hypersensitivity

D Type IV hypersensitivity

A It prevents proteus swarming

B Inhibits growth of other commensals

C It allows Staphylococcus and Candida to grow

D It differentiates lactose fermenters from non-fermenters

A Staph. aureus

B Staph. epidermidis

C Streptococcus pyogenes

D Enterococcus faecalis

A Carcinoma base of tongue

B Cervical carcinoma

C Tonsillar carcinoma

D Nasopharyngeal carcinoma

A Susceptible to many antibiotics

B Present mainly in mixed infections

C Most common species is B fragilis

D Bile resistant anerobes

A Enterobius vermicularis

B Hymenolepis nana

C Taenia solium

D Ascaris lumbricoides

A Increase water and sodium loss by debilitating diarrhoea

B Toxic protein is cholera toxin

C Activate adenylatecyclase

D Gram positive rod

A Dendritic cells of the lymphnode germinal epithelium

B Circulating T4 lymphocytes

C B- lymphocytes

D Epithelial cells of the sex organs

A Optimum temperature for toxin production is 370C

B Intradietic toxin are responsible for intestinal symptoms

C Toxin can be destroyed by boiling for 30 minutes

D Incubation period is 1-6 hours