Microbiology MCQ (Quiz-5)  

Multiple choice questions with answer key

S. Y. B.PHARM Sem - III  (UNIT - 1)  

AS PER PCI SYLLABUS






1. Eye cannot resolve any image less than
      A) 5ìm


... Answer is : A) 5ìm


2. Electron Microscope was discovered by




... Answer is : A) Knoll and Ruska

3. Condensation of light in light Microscope is by





... Answer is : C) Condensor

4. If 10x and 40x objectives are used (air is the medium), the numerical aperture is




... Answer is : A) 1.0


5. Limit of resolution of compound microscope is




... Answer is : A) 0.1 mm

6.Who perfected a magnetic lens in 1927 .




... Answer is : C) Gabor

7. In electron microscope source of electrons is from




... Answer is : D) Tungsten metal

8. Mycorrhiza was first observed by





... Answer is : C) Frank


9. Phagocytic theory was proposed by





... Answer is : D) Elie Metchnikoff

10. Primary mediators in anaphylaxis




... Answer is : D) All of these

11.Compound Microscope was discovered by




... Answer is : A) Janssen and Hans


12.Magnification range of light microscope is




... Answer is : D) 1000x – 2000x

13.Light gathering capacity of Microscope is called




... Answer is : B) Numerical aperture


14. The ability of Microscope to distinguish two objects into two separate objects, is called.




... Answer is : A) Resolving power

15. Source of light in fluorescence microscopy is from




... Answer is : B) Mercury lamp


16. The magnefication power of electron microscope developed by Knell and Ruska is




... Answer is : C) 12,000x

17. The electron passed out from the specimen are called




... Answer is : A) Secondary electrons


18. The transfer of genetic material during transformation is proved basing on Griffith’s experiment by




... Answer is : D) Avery Macleod & Mc.Carthy

19.Anaphylaxia was first observed by




... Answer is : C) Parter & Richet

20. Arthus reaction was discovered by




... Answer is : B) Marrice Arthus