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Quiz 127
Mdcat-past-papers Quiz
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2521. Most widespread problem of antibiotic misuse is:
Rapid cure
Increased resistance in pathogens
Disturbance of metabolism
None
2522. Students were asked to give a guess about unicellular organism with darkly stained nucleus. Which of following can be straight away excluded from the list:
Paramecium
Amoeba
Plasmodium
Lactobacillus
2523. Binary fission is a characteristic cell division not found in :
Pseudomonas
Campylobacter
Euglena
E.coli
2524. Nitrifying bacteria are the examples of:
Heterotrophic bacteria
Chemosynthetic bacteria
Saprophytic bacteria
Parasitic bacteria
2525. Photosynthetic bacteria liberate:
CO2
O2
Sulphur
Hydrogen
2526. Which of the following are the genetically engineered bacteria that are used to make growth hormone and insulin for diabetics?
Pneumococcus
E.coli
Rhizobium
Nostoc
2527. All of the following are physical methods to control bacteria except:
Sterilization
Boiling
Radiation
Antiseptics
2528. Which mode of genetic exchange between bacteria involves cell-to-cell contact
Transduction
Transformation
Conjugation
None of above
2529. ........ is used in the production of human insulin?
Bacteria
Protozoa
Fungi
Virus
2530. Select a method which causes the oxidation of constituent of a bacterial cell:
Steam
Dry heat
Filtration
Radiation
2531. Red algae do not contribute towards:
Making coral reefs
Forming limestone deposits
Making fertilizers
Forming chalk deposits
2532. Which of following statement is true about Amoeba?
They have flagella
They are multicellular
They don't cause disease in humans
move by forming cytoplasmic projection called pseudopodia
2533. What is main role of bacteria?
Carbon cycle
Phosphorous cycle
Nitrogen cycle
All of the above
2534. Discoloration of teeth in young children occur by misuse of:
Penicillin
streptomycin
tetracycline
all can cause discoloration
2535. The disease botulism is caused by:
salmonella
campylobacter
E.coli
Clostridium botulinum
2536. Deafness is side effect of which antibiotic?
tetracycline
streptomycin
Lovastatin
cyclosporine
2537. Freeing of an object from all living organisms,bacteria and their spores,fungi etc is called :
Sterilization
Disinfection
Decolamination
Immunization
2538. Natural bacterial flora is beneficial to humans because they interfere with pathogenic colonization:
Interfere with pathogenic colonization
Develop resistance against antigens
Develop resistance against physical agents
Produce antibiotics against pathogens
2539. Probiotics in infants formula milk are the normal bacterial flora to humans. They keep the babies healthy by doing all the following actions except:
Produce important vitamins
Kill pathogenic bacteria
prevent colonization of pathogens
Enhance immunity
2540. All of the following are disinfectants to control bacterial growth except :
Tincture of iodine
mercuric chloride
Potassium permanganate
Hydrogen peroxide
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