Top 1000+ Solved Microbiology MCQ Questions Answer
Q. The bacterial cells are at their metabolicpeak during
a. Lag phase
b. Log
c. Stationary
d. Decline
Q. In most of purple bacteria, the light harvesting centers are
a. B 850 & Fe-
b. B 850 & B 875
c. B 845 & B 875
d. B 850 & B830
Q. Endotoxin produced by gramnegativebacteria is present in
a. Peptidoglycan
b. Lippolysacharide
c. Theichoic acid
d. Inner membrane
Q. Which one of the following was Gramnegative, chemolithotrophic bacteria?
a. Siderococcu
b. E.coli
c. Spirellum
d. Mycoplasms
Q. The mode of reproduction which occursin mycoplasma is
a. Budding
b. Bursting
c. Binary fission
d. Binary fusion
Q. Which one of the following is aboutHerpes viruses?
a. Icosahedral, with envelope, ds DNA
b. Polyhedral with envelope, ds DNA
c. RNA, helical with envelope
d. ds DNA, brick shape
Q. Which one of the following produce typical fried egg appearance colonies on solid media?
a. Mycobacteria
b. Mycoplasts
c. Mycoplasms
d. Bacteroides
Q. An organism that is osmophilic and has a specific requirements for sodium chloride resembles
a. Halophile
b. Basophile
c. Barophile
d. Xerophile
Q. A population of cells derived from a singlecell are called
a. Monclonal cell
b. Clones
c. Protoplasts
d. Sub culture
Q. Hetrolactic acid bacteria produce
a. Lactic acid only
b. Lactic acid + H2O + CO2
c. Lactic acid + CO2
d. Lactic acid + alchohol + CO2
Q. In which of the follwing microorganism, conjunction tube was not produced during conjunction process?
a. Thiobaillus thiooxidence
b. T. ferroxidance
c. Tetrahymena thermophila
d. Cryptaporiclium
Q. Which of the following is most similar to Rickettsia and Chlamydia?
a. Bdellovibrio
b. Clostridium
c. Mycobacterium
d. Mycoldaima
Q. How would you distinguish pseudomonasspecies from E-cloi?
a. Gram staining
b. Morphology
c. Glucose fermentation Vs Respiration
d. All of the above
Q. Which of the following is pathogenic to humans?
a. Spirogyra
b. Cephaleuros
c. Prototheca
d. Both b and c