1. Founder of modern bacteriology is–
(A) Leeuwenhoek (B) Pasteur✓
(C) Robert Koch (D) None of the above
2. Braun's lipoprotein is present. in–
(A) Gram+ve bacteria (B) Gram-ve bacteria✓
(C) Bacteriophage (D) Yeast
3. Pseudomorein is an organism?
(A) Archaebacteria✓ (C) Eukaryote present in which
(B) Eubacteria (D) Fungi
4. The most resistant form of microbial life in the bacteria is–
(A) Cyst (B) Endospore✓
(C) Vegetative stage (D) None
5. Species of Mycoplasma are inhibited by–
(A) Penicillin (B) Tetramycin✓
(C) Both (D) None of the above
6. Example for microaerophilic N 2 fixer–
(A) Rhizobium (B) Azotobacter
(C) E. Coli (D) Frankia✓
7. First" Antifungal antibiotic–
(A) Cycloheximide (B) Aureofungin
(C) Neomycin (D) Nystatin✓
8. In general, an ideal antimicrobial chemical agenthase a spectrum activity–
(A) Limited (B) Broad✓
(C) Narrow (D) None
9. The term Mycorrhiza is coined by–
(A) Frank✓ (B) Hartig
(C) De bary (D) Winogradasky
10. Which of the following insecticides ?
(A) Bacillus thuringiensis (B) Bacillus popilliae
(C) Both (A) and (B)✓ (D) None of the above
11. A substance that can elicit an immune response only when combined with another carrier–
(A) O antigen (B) Haptan✓
(C) Adjent (D) Immunogen
12. Factor which does not affect legume root nodulation ?
(A) Temperature (B) Light✓
(C) Combined N 2 (D) H + ion cone.
13. In leghaemoglobin the heme portion is specified by
(A) Plantgenes (B) Bacterial genes✓
(C) Both (D) None of these
14. Cell - Cell interaction and differentiation is mostly studied on–
(A) Arabidopsis thaliana (B) Cenorabditis elegens
(C) Escherichia coli (D) Dictyostlium discodeum✓
15. Bacteria which can ferment sugar faster than yeast is–
(A) Oostridium (B) Zygomonas✓
(C) Thiobacillus (D) Bacillus
16. First antifugal antibiotic is–
(A) Nystatin✓ (B) Cycloheximide
(C) Aureofungin (D) None of these
17. Virus quantification in a given sample is done by–
(A) End point efflux (B) End point dilution✓
(C) End point titration (D) All of these
18. The phenomenon of inhibiting the growth of bacteria without killing them
(A) Bactericidal (B) Bacteriostatic✓
(C) Both (D) None
19. In gram staining the alcohol acts on–
(A) Teichoic acids (B) Peptidoglycan
(C) Periplasm (D) Membrane lipids✓
20. In cocoa fermentation, the microbial inoclumn used is of–
(A) Aspergillus niger (B) Candida Krusei✓
(C) Rhizopus oryzae (D) None of the above
21. Number of the chromosome in bacteria is–
(A) 0 (B) 1✓
(C) 2 (D) Many
22. Fungi used for bioassay of biotin–
(A) Neurospora✓ (B) Yeast
(C) Aspergillus (D) Penicillium
23. An agent which frees from infection by killing the vegetative cells of microorganism–
(A) Surfactant (B) Disinfectant✓
(C) Antiseptic (D) None of these
24. A fluorescent dye used in fluorescent microscopy is–
(A) Acridine orange (B) Phosphotungstic acid
(C) Ethidium bromide✓ (D) Luciferin
25. Bacteria are commonly seen in soils such as–
(A) acidic (B) neutral✓
(C) alkaline (D) saline
26. Protein coat of a virus–
(A) Capsule (B) Capsid✓
(C) Envelope (D) Coat
27. 'P' solubilizing bacteria–
(A) Bacillus megatherium✓ (B) Clostridium pasteurianum
(C) A. Niger (D) Micrococcus sp
28. In autoclave which form of heat is used ?
(A) dry heat✓ (B) moist heat
(C) vacuum heat (D) both a and-b
29. Virus - "Contangium viuum fluidum" was given by–
(A) A. Mayer (B) Beijerinck✓
(C) Iwanoski (D) None of these
30. Principal sites for CO2 fixation in autotrophic prokaryotes–
(A) Chromosomes (B) Carboxysomes✓
(C) Both (D) None of these
31. Number of flagella in Cyanobacteria are–
(A) Zero✓ (B) One
(C) Two (D) Three
32. Father of bacteriology is–
(A) Leewenhoek✓ (B) Pasteur
(C) Koch (D) None of these
33. Test organism for phenol coefficient–
(A) Salmonella tyagi (B) Staphylococcus aureus
(C) Both✓(D) None of these
34. Which of the following does not produce any enzyme?
(A) Amoeba (B) Virus✓
(C) Bacteria (D) Fungi
35. In Archaebacteria which one is present in the cell wall ?
(A) Murein (B) Pseudomurein✓
(C) Both (D) None of these
36. A virus that may not destroy the host–
(A) Virulent phage (B) Temperature phage✓
(C) Cyanophage (D) Lytic cycle
37. Fermenting organism involved in Yoghurt
(A) Streptococcus✓ (B) Aspergillus
(C) Podiococcus (D) None of these
38. An aminoglycoside antibiotic–
(A) Penicillin (B) Streptomycin✓
(C) Tetracycline (D) None of these
39. Type of relationship between Acetobacter diazotrophicus and sugarcane is–
(A) Symbiotic (B) Associative
(C) Endophytic✓ (D) Free living
40. Red pigment produced by–
(A) Serratia✓ (B) Micrococcus
(C) Both (D) None of these
41. Rhizosphere was coined by–
(A) Hiltner✓ (B) Beijernick
(C) Winogradsky (D) None
42. Test organism for pasteurization is–
(A) Coxicella bumetti✓ (B) Clostridium pasteurizanum
(C) Bacillus subtilis (D) Bacillus steareothermophillus
43. Gram staining was discovered by Gram in the year–
(A) 1762 (B) 1932
(C) 1884✓ (D) 1890
44. Example of pleomorphic bacteria is–
(A) Acetobacter (B) Azotobacter
(C) Achromobacter (D) Arthrobacter✓
45. Acid fast staining used for which bacteria–
(A) Mycobacterium✓ (B) Rhizobium
(C) Bacillus sp. (D) Clostridium
46. Bacitracin is produced by–
(A) Bacillus subtillis✓ (B) Aspergillus niger
(C) E. Coli (D) Yeast
47. Name of the bacterium producing endospore is–
(A) Bacillus✓ (B) Agrobacterium
(C) Xanthomonas (D) E. Coli
48. Ultraviolet light is most germicidal at the wavelength of–
(A) 245 nm (B) 255 nm
(C) 265 nm✓ (D) None
49. Phosphorus solubilizing microorganism–
(A) VAM✓ (B) Mucor
(C) Rhizopus (D) E. Coli
50. Which of the following genera is most likely to contain organisms capable of surviving high temperature?
(A) Oostridium✓ (B) Penicillium
(C) Torula (D) Pseudomonas
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