Microbiology MCQ Questions — Page 527

Question 1

A baker cut his finger while slicing a cake. After a week, site of the injury is red and swollen, and begins draining pus. While preparing some custard pies, he contaminates the dish with drainage from the lesion. The pies were eaten a day later by customers of the restaurant. Within 4 hours they developed vomiting with no fever. Most likely cause?

Answer

Bacillus cereus

Answer

Clostridium perfringens

Answer

Escherichia coli

Answer

Staphylococcus aureus

Question 2

ACapsule

BToxin

Answer

Bacteriophage

Answer

Failure of oxidative burst

Question 3

Answer

Transduce the signal to T-cell following antigen recognition

Answer

Mediate immunogenic class switching

Answer

Present antigens for recognition by T-cell antigen receptors

Answer

Enhance secretion of cytokines

Question 4

AD to K

BA, B, C

CL1 L2 L3

Answer

All of the above

Question 5

Answer

Causes epidemic relapsing fever

Answer

It is transmitted by ixodes tick

Answer

No other known animal reservoir of B. recurrentis exists

Answer

It infects the person mucous membranes

Question 6

Answer

Japanese B encephalitis

Answer

Herpes simplex encephalitis

Answer

HW encephalitis

Answer

Rubeola encephalitis

Question 7

Answer

Presence of active pseudopodia

Answer

Erythrophagocytosis

Answer

Presence of intracytoplasmic vacuole

Answer

Presence of two nucleoli

Question 8

AT4

BT11

CT3

DT8

Question 9

ALactose

BCasein

Answer

Neutral Red

Answer

All of the above