(A) Haemolysin
(B) Hyaluronidase
(C) Necrotizing toxin
(D) Capsular polysaccharides
Tag: General Microbiology Mcqs
The majority of non-immunized patients infected with poliovirus would be expected to experience which of the following symptoms?
(A) Flaccid paralysis of ≥1 extremities
(B) Aseptic meningitis
(C) Muscle spasms and pain
(D) Asymptomatic infection
Acid fastness of tubercle bacilli is attributed to:
(A) Presence of mycolic acid
(B) Integrity of cell wal
(C) Both of above
(D) Cell Membrane
Ames test general requires addition of __ to make bacterial system comparable to mammalian system.
(A) Liver homogenate
(B) Kidney homogenate
(C) Spleen homogenate
(D) Blood homogenate
Ability to ferment __ is used to detect coliforms.
(A) Lactose
(B) Glucose
(C) Mannitol
(D) Dextrose
What will be your result interpretation, if MPN results shows 0,1,3 after presumptive test?
(A) Water is potable
(B) Error in collecting water sample
(C) Dilution of media is incorrect
(D) Water is not polluted with E. coli
If 35 colonies were counted on a 10-2 dilution plate inoculated with a loop calibrated to deliver 0.01 ml of urine, what will be the bacteria/ml in the urine?
(A) 35,000
(B) 350,000
(C) 3,500
(D) 350
Which of the following is a host in the life cycle of all trematodes that infect humans?
(A) Flea
(B) Mosquito
(C) Snail
(D) Sand fly