Top 250+ Solved Bacteria and Gram Staining MCQ Questions Answer
Q. The bacteria, which is motile at 22oC butnon-motile at 37oC is
a. Tranformation
b. Transduction
c. Conjugation
d. Cell fusion
Q. Techoic acid is –
a. Found in the walls of Gram positive bacteria
b. Provide receptors for phages
c. Make up outer wall of Gram negative bacteria
d. Influence the permeability of the membrane
Q. One flagelium at one end of the organ is called –
a. Monotrichate
b. Amphitrichate
c. Iophotrichate
d. Peritrichate
Q. What is the function of bacterial capsule?
a. Production of organism from phagocytosis
b. Helps in adherence of bacteria to surface in its environment
c. Both a and b
d. None of these
Q. Which of the following is the charachteristic of bacterial spore?
a. Highly refractile
b. Usually dehydrated
c. Sensitive to formaldehyde
d. All of these
Q. Which of the following are acid faststructures?
a. Mycobacteria
b. Bacterial spores
c. Nocardia
d. All of these
Q. All of the following are acid fast structures except
a. Clostridium
b. Bacterium spores
c. Exoskeleton
d. None of these
Q. All of the following are energy source ofbacteria except
a. Oxidation of inorganic compounds
b. Oxidation of organic compounds
c. Absorption of heat
d. Utilisation of visible light
Q. Streptococci which are destroyed at 60°Cfor 30 minutes
a. Preptostreptococci
b. Strepto viridans
c. Strepto hemolyticus
d. All of these
Q. Toxins or enzymes which are not produced by streptococcus pyrogens
a. Hyaluronide
b. Phosphate
c. Hemolysin
d. Streptokinase
Q. Cholera red reaction is identified by
a. Sulphuric acid
b. Nitric acid
c. Hydrochloric acid
d. Carbolic acid
Q. Diagnosis of carrier of salmonella typhimay be shown by
a. Fecal culture
b. Bile culture
c. Urine culture
d. All of these
Q. Daisy head colony is associated with
a. M.tuberculosi
b. C.diphtheriae
c. Cl. tetani
d. None of these