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Botany MCQS[NEET-2021 to 2022]-Bacteriology

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1. Which of the following bacteria is not a most common bacterial pathogen causing diarrhea




2. Which of the following bacteria is rarely associated with urinary tract infections?




3. Which of the following statement regarding Campylobacter jejuni is not correct?




4. Which of the following bacteria is not most important causes of acute bacterial meningitis?




5. Which of the following Gram negative rod is not a blood borne bacterial pathogen?




6. Throat culture is not useful to diagnose




7. Stool culture is primarily recommended when the complaint is




8. Which of the following bacteria causing sexually transmitted disease can not be grown on artificial media?




9. Cold agglutinin test is useful for the diagnosis of




10. Which of the following test is not recommended for the diagnosis of Syphilis?




11. A massive lesion caused by spread of Staphylococcus aureus infection (often on the neck and upper back) is called a




12. Scalded skin syndrome is caused by exotoxin (exfoliatins) produced by




13. Which of the following microorganisms causes scarlet fever?




14. The pus producing skin infections (pyoderma) can be caused by




15. Which of the following is not the characteristics of impetigo?




16. Burn patients often develop nosocomial infection caused by:




17. The bacteria that multiply in blocked skin pores, metabolize sebum, and can lead to the development of acne are:




18. Bacterial conjunctivitis (inflammation of the eye conjunctiva) can be caused by:




19. The leading cause of preventable blindness in the world is caused by




20. Gas gangrene is most likely associated with infection with




21. The role of bacterial capsules as virulence factors is usually related to their ability to interfere with




22. A mutation in DNA gyrase is likely to result in resistance to which one of the following antibiotics?




23. Resistance of Staphylococcus aureus to methicillin is most often caused by




24. The molecular basis for the effect of cholera toxin on duodenal mucosal cells is




25. The synthesis of erythrogenic toxin by specific strains of group A Streptococcus is determined by a




26. Which one of the following factors, released by heating a suspension of sheep erythrocytes, is required for the growth of Haemophilus Influenzae in chocolate agar ?




27. The portion of the growth curve where a rapid growth of bacteria is observed is known as




28. The growth of bacterial population follows a geometric progression




29. In the growth equation: n= 3.3 (log10 N log10 No ), n stands for




30. Lag phase is also known as




31. The generation time for E.coli is




32. During exponential phase, growth rate is




33. In which of the following phase secondary metabolites are produced during growth




34. Which phase shows reproduction rate equal to the equivalent death rate?




35. Which of the following is used to grow bacterial culture continuously?




36. The average size of the cells in the exponential phase is




37. Which of the following is an indirect method for measuring bacterial growth?




38. Which of the following instrument is used for bacterial count?




39. Which of the following method is used for viable count of a culture?




40. Which of the following is the relationship between optical density and cell mass?




41. How many cells present per millilitre in a bacterial culture can make the culture turbid?




42. Which of the following is a direct measurement of growth?




43. Which of the following method is used for enumeration of bacteria in vaccines and cultures?




44. Colony-forming units per ml is the unit of




45. Isolation of pure culture refers to




46. Which of the following is not a physical method for selection of pure culture?




47. In physical method of selection, endospore-forming bacteria can be obtained by heating the mixed culture to




48. Vibrio cholerae can grow in a medium with a pH of




49. Disease-producing species occurring in a mixed culture can be selected by taking advantage of