Biology MCQs

Page No. 65

Coccobacillus has a shape similar to________________?


aDiplobacillus


bSarcina


cEgg


dNone of these


View Answer Egg

Some bacteria ranging occasionally a size of 500 ?m in length are___________________?


aEscherichia coli


bSpirochetes


cMycoplasma


dEpulopiscuim


View Answer Spirochetes

Germ theory of disease has________________postulates?


a3


b5


c4


d6


View Answer 4

In bacterial categories the bacteria smaller in number are_______________?


aGram-ive bacteria


bEubacteria


cAncient bacteria


dGram +ive bacteria


View Answer Ancient bacteria

E. coli and example of entrobacteriace is important for causing diarrheal diseases its size is____________?


a0.1-600 um


b100-200 nm


c1.1-1.5 um (width) 2.0-6.0 um (length)


d0.75-1.25 um



The size of Spirochete is_____________?


a0.1 -600 um


b100-200 nm


c500 um


d0.75-1.25 um


View Answer 500 um

Which of the following structure is not present in all the bacteria_____________?


aCell membrane


bChromatin bodies


cRibosomes


dCapsule


View Answer Capsule

Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch_____________?


aA specific organism can always be found in association with a given disease


bThe organism can be isolated and grown in pure culture in the laboratories


cThe pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.


dIt is possible to recover the organism in pure culture from the experimentally infected animals



Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture_____________?


aRobert Koch


bLouis Pasteur


cAlexander Fleming


dLeeuwenhoek


View Answer Leeuwenhoek

Who coined the term Animalcules for microorganisms like Bacteria and protozoa______________?


aRobert Koch


bLouis Pasteur


cAlexander Fleming


dLeeuwenhoek


View Answer Leeuwenhoek

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