Microbiology — MCQs

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1. Who is considered the father of microbiology?





2. Which staining technique is used to classify bacteria into Gram-positive and Gram-negative?





3. Bacteria are classified as:





4. Which structure is responsible for bacterial motility?





5. The first antibiotic discovered was:





6. Which scientist proposed the germ theory of disease?





7. Which of the following microorganisms lack a true nucleus?





8. Endospores are produced by:





9. Which type of microscope is commonly used to view bacteria?





10. Which microorganism is used in the production of bread and beer?





11. The causative agent of tuberculosis is:





12. Which of the following is an acid-fast bacterium?





13. Viruses are composed of:





14. The smallest infectious agent is:





15. Which bacterium is commonly used in recombinant DNA technology?





16. Which of the following is a vector-borne disease?





17. The shape of cocci bacteria is:





18. Which of the following is used for sterilization of heat-sensitive materials?





19. The enzyme lysozyme is found in:





20. The first vaccine discovered was against:





21. Which type of bacteria convert atmospheric nitrogen into usable forms?





22. Which organism causes syphilis?





23. Which microorganism produces antibiotics like streptomycin?





24. The bacterial cell wall is made of:





25. Which bacterium is used in yogurt production?





26. Which bacteria are spherical and arranged in chains?





27. Which scientist developed pure culture techniques?





28. Which of the following bacteria lack a cell wall?





29. Which of the following methods is used for the preservation of bacteria for a long time?





30. Which virus causes AIDS?





31. Which of the following is used for bacterial staining?





32. The causative agent of cholera is:





33. Which of the following is a DNA virus?





34. The enzyme reverse transcriptase is associated with:





35. Which bacteria are used in the production of antibiotics like penicillin?





36. The causative agent of anthrax is:





37. The capsid of a virus is made of:





38. The scientist who discovered penicillin was:





39. Which of the following is an example of a protozoan parasite?





40. Which microorganism is used in cheese production?





41. The term “microbe” refers to organisms that are:





42. The bacteria that live in extreme environments are called:





43. Which bacterium is commonly called “flesh-eating bacteria”?





44. The protein coat of a virus is called:





45. The process of killing all microorganisms including spores is called:





46. The causative agent of plague is:





47. Which type of immunity is provided by vaccines?





48. Which virus causes rabies?





49. The process of bacterial reproduction by binary fission is:





50. Which of the following is a fungal infection?





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