MCQ Microbiology History

Microbial History: 

1. According to Pasteur statements which one of the following is true

a. Living organisms discriminate between stereoisomers

b. Fermentation is a aerobic process

c. Living organisms doesn’t discriminate between stereoisomers

d. Both a and b

2. “I found floating therin earthly particles, some green streaks, spirally wound serpent-wise, and orderly arranged, the whole circumstance of each of these streaks was abut the thickness of a hair on one’s head”…. These words are of

a. Leeuwenhoek

b. A. Jenner

c. Pasteur

d. Koch

3. The principle light- trapping pigment molecule in plants, Algae, and cyanobacteria is

a. Chlorophyll a

b. Chlorophyll b

c. Porphyrin

d. Rhodapsin

4. During Bio Geo chemical cycle some amount of elemental carbon was utilized by the microorganisms. The phenomenon is called as

a. Dissimilation

b. Immobilization

c. Decomposition

d. Neutralization

5. Who demonstrated that open tubes of broth remained free of bacteria when air was free of dust.

a. Abbc Spallanzani

b. John Tyndall

c. Francisco Redi

d. Pasteur

6. Reverse isolation would be appropriate for

a. a patient with tuberculosis

b. a patient who has had minor surgery

c. a patient with glaucoma

d. a patient with leukemia

7. The symptome “ general feeling of illness and discomfort “ is called

a. Cystitis

b. Malaise

c. Anaphylactic shock

d. Arthritis

8. On soybean which of the following forms symbiotism

a. Azatobactor paspali

b. Rhizobium

c. Nostoc

d. Bradyrhizobium

9. Who provide the evidence that bacteriophage nucleic acid but not protein enters the host cell during infection

a. Alfred D.Hershey & Leonard Tatum in 1951.

b. Alfred D.Hershey & Zindar Lederberg in 1951.

c. Alfred D.Hershey & Martha Chase in 1952.

d. Alfred D.Hershey & Macleod in 1952.

10. Spirulina belongs to

a. Xanthophyceae

b. Cyanophyceae

c. Rhodophyceae

d. Pheophyceae

11. The first antibody to contact invading microorganisms was

a. IgG

b. IgM

c. IgA

d. IgD

12. The light emitted by luminescent bacteria is mediated by the enzyme

a. Coenzyme Q

b. Luciferase

c. Lactose dehydrogenase

d. Carboxylase reductase

13. Pick out the vector using in human Genome project

a. Phagemid vector

b. Yeast artificial chromosomes

c. Cosmid vectors

d. Yeast episomal plasmids

14. Salt and sugar preserve foods because they

a. Make them acid

b. Produce a hypotonic environment

c. Deplete nutrients

d. Produce a hypertonic environment

15. In a fluorescent microscope the objective lens is made of

a. Glass

b. Quartz

c. Polythene

d. None of these

16. Fixation of atmospheric nitrogen is by means of

a. Biological process

b. Lightening

c. Ultraviolet light

d. All of the above

17. Which one of the following fungi is the most serious threat in a bone marrow transplant unit?

a. Candida albicans

b. Aspergillus

c. Blastomyces

d. Cryptococus

18. Direct microscopic count can be done with the aid of

a. Neuberg chamber

b. Anaerobic chamber

c. Mineral oil

d. Olive oil

19. The image obtained in a compound microscope is

a. Real

b. Virtual

c. Real inverted

d. Virtual inverted

20. Enzymes responsible for alcoholic fermentation

a. Ketolase

b. Zymase

c. Peroxidase

d. Oxidase

21. Which type of spores are produced sexually?

a. Conidia

b. Sporangiospores

c. Ascospores

d. None of these

22. Bacterial transformation was discovered by

a. Ederberg and Tatum

b. Beadle and Tatum

c. Griffith

d. None of these

23. Father of microbiology is

a. Louis Pasteur

b. Lister

c. A.V. Leeuwenhock

d. Robert Koch

24. The antiseptic method was first demonstrated by

a. Lwanowski

b. Lord Lister

c. Edward Jenner

d. Beijerinck

25. Small pox vaccine was first discovered by

a. Robert Koch

b. Louis Pasteur

c. Lister

d. Edward Jenner

26. The term mutation was coined by

a. Pasteur

b. Darwin

c. Hugo devries

d. Lamark

27. Compound microscope was discovered by

a. Antony von

b. Pasteur

c. Johnsen & Hans

d. None of these

28. Father of Medical Microbiology is

a. Pasteur

b. Jenner

c. Koch

d. A.L. Hock

29. Disease that affects many people at different countries is termed as

a. Sporadic

b. Pandemic

c. Epidemic

d. Endemic

30. Prophylaxis of cholera is

a. Protected water supply

b. Environmental sanitation

c. Immunization with killed vaccines

d. All of these

31. In electron microscope, what material is used as an objective lens?

a. Magnetic coils

b. Superfine glass

c. Aluminium foils

d. Electrons

32. The main feature of prokaryotic organism is

a. Absence of locomotion

b. Absence of nuclear envelope

c. Absence of nuclear material

d. Absence of protein synthesis

33. The stalked particles on the cristae of mitochondria are called

a. Glyoxysomes

b. Peroxisomes

c. Oxysomes

d. Spherosomes

34. Antiseptic methods were first introduced by

a. Lord Lister

b. Iwanowski

c. Beijernick

d. Edward Jenner

35. Kuru disease in Humans is caused by

a. Bacteria

b. Viroides

c. Prions

d. Mycoplasma

36. A mutation that produces termination codon is

a. Mis-sense mutation

b. Neutral mutation

c. Non-sense mutation

d. Reverse mutation

37. During conjunction the genetic material will be transferred through

a. Cell wall

b. Medium

c. Pili

d. Capsule

38. Antiseptic surgery was discovered by

a. Joseph Lister

b. Ernest Abbe

c. Pasteur

d. Beijerink

39. Tuberculosis is a

a. Water borne disease

b. Air borne disease

c. Food borne disease

d. Atthropod borne disease

40. Phagocytic phenomenon was discovered by

a. Louis Pasteur

b. Alexander Fleming

c. Metchnikof

d. Robert Koch

41. Meosomes are also known as

a. Mitochondria

b. Endoplasmic reticulum

c. Plasmids

d. Chondroids

42. Hybridoma technique was first discovered by.

a. Kohler and Milstein

b. Robert Koch

c. ‘D’ Herelle

d. Land Steiner

43. The minimum number of bacteria required to produce clinical evidence of death in a susceptible animal under standard condition is called

a. LD50

b. ID

c. MLD

d. All of these

44. In Electron Microscope source of electrons is from

a. Mercury lamp

b. Tungsten metal

c. both a and b

d. None of these

45. Griffith (1928) reported the phenomenon of transformation first in

a. H. influenzae

b. Bacillus species

c. Pneumococci

d. E.coli

46. The resolution power of the compound microscope is

a. 0.2 micron

b. 0.2 millimeter

c. 0.2 Angstrom units

d. 0.2 centimeter

47. The capacity of a given strain of microbial species to produce disease is known as

a. Pathogen

b. Virulence

c. Infection

d. None of these

48. Monoclonal antibodies are associated with the name of

a. Burnet        

b. Medwar

c. Milstein kohler

d. Owen

49. Lederberg and Tatum (1946) described the phenomena of

a. Conjunction

b. Transformation

c. Mutation

d. Plasmids

50. Hanging drop method for motility study was first introduced by

a. Robert Koch

b. Louis Pasteur

c. Jenner

d. Leeuwenhock

Note: For answers contact me

(Citation from: Sagar G.V. (2008) MCQs in Microbiology, New Age International (P) Limited Publishers )