MICROBIOLOGY OBJECTIVES QUESTIONS

1. SDA stands for SABOURAUD’S DEXTROSE AGAR.
2. MPN stands for MINIMUM POSSIBLE NUMBER.
3. IBCN stands for INTERNATIONAL BACTERIAL CODE FOR NOMENCLATURE.
4. It was ROBERT KOCH, a GERMAN PHYSICIAN who developed laboratory method to grow that certain infectious disease like T.B, caused by MICRO-ORGANISMS.
5. The approximately 1/3rd of the Nobel prizes awarded on MEDICINE and PHYSIOLOGY since 1901 have been given to MICROBIOLOGISTS.
6. In case of GRAM +VE BACTERIA the cell wall contains MULTIPLE layers of Peptidoglycan.
7. A bacterial cell placed in pure water tends to SWELL UP as a result of OSMOSIS.
8. E.COLI contain information for the production of approximately a number of 400 PRODUCTS.
9. The smallest PLASMID contains as few as 5-genes and larger one as much as 100 GENES.
10. Three layered PLASMA MEMBRANE OF BACTERIA consists of TWO ELECTRON DENSE PROTEIN LAYERS surrounding the transparent lipid layer.
11. MORPHOLOGY of bacterial cell means SHAPE, SIZE, STRUCTURE AND ARRANGEMENT IN COLONIES.
12. The study of Algae is known as PHYCOLOGY.
13. The power of producing disease is known as VIRULENCE.
14. Medical Microbiology deals with micro-organisms related to infectious diseases.
15. In 1969, the recent biological classification scheme was suggested by WHITTAKER.
16. VITAMIN K is considered as growth factor for bacteria known as Bacteroides melaninogenicus.
17. THIAMINE (VITAMIN B1) is the growth factor for bacteria Bacillus anthracis.
18. RIBOFLAVIN is the growth factor for bacteria Clostridium tetani.
19. NIACIN is the growth factor for Brucella abortus.
20. Lactobacillus specie require PYRIDOXINE (B6) and COBALAMINE(B12) for their growth.
21. BIOTIN is the growth factor for the bacteria Leuconostoc mesenteroides.
22. FOLIC ACID is required by Leuconostoc dextranium for growth.
23. PANTOTHENIC ACID is growth factor for bacteria Morganella morganii.
24. The living cells have at least 5-CHARACTERS.
25. The spore forming bacteria include Bacillus, Clostridium, Sporosarcina, Thermoactinomyces.
26. ATYPICAL SHAPES of bacteria include Filamentous streptomyces.
27. LEEUMENHOCK is remembered as first microbiologist who reported of seeing micro-organisms.
28. The causative agent of typhoid is Salmonella typhi.
29. LOGARITHMIC PHASE is that growth phase where bacteria divide at their generation time.
30. Certain bacteria such as Thiobacilli are capable of oxidizing sulphus to sulphate.
31. EXOSPORIUM is the outermost part of spore.
32. The process of naming the bacteria is known as NOMENCLATURE.
33. The bacterium carrying flagella all over the body is known as PERITRICHOUS.
34. Rickettsia is ARTHOPODE BORN organism.
35. Lactic acid is produced by LACTOBACILLI.
36. FLAGELLUM is the organ of locomotion.
37. Bacillus thuringiensis is the typical example of CRYSTAL FORMING BACTERIA.
38. Saccharomyces cerevisiae produce 4 to 8 ascospores.
39. Streptococcus pneumoniae is the Gram +ve and E. coli is the Gram –ve bacterium.
40. For the growth of anaerobic bacteria, Sodium thioglycolate medium is required.
41. The typical example of Psychophillic bacteria is Pseudomonas delphinii.
42. Vibrios shows a typical movement known as Shooting Star Movement.
43. Criteria use to establish the etiology of an infectious disease are Koch’s Postulates.
44. Capnophiles are the organisms which require an increased level of Carbon Dioxide (CO2).
45. Colony is the progeny of a single cell.
46. In the UHT method, milk is passed through a temperature of 140 C for a time of two seconds.
47. The typical example of Spirochaetes are species of Borellia and Treponema.
48. MBC stands for Minimum Bactericidal Concentration.
49. EMB stands for Eosin Methylene Blue.
50. PUO stands for Pyrexia of Unknown Origin.
51. LPS stands for Center of Disease Control.
52. PAS stands for Para Amino Salicylic acid.
53. PAUL EHRLICH is known as father of CHEMOTHERAPY.
54. Sarcina lutea is anaerobic Gram +ve Cocci.
55. Measles is characterized by KOPLICKS spots (oral rashes).
56. TAB VACCINE is prepared by heating the suspension of SALMONELLA at 56C for 60 minutes.
57. During 1882-93 JOHN TYNDALL conduct experiment to prove that dust carries the germs.