Study Guide 1
True or False:
___________1. Leeuwenhoek constructed the first two-lens or compound microscope, which enabled
him to observe tiny microbes.
___________2. Koch’s postulates can be applied to the identification of all microbes, including viruses.
___________3.Leeuwehoek is credited with observing the first microorganisms and making the first
microscope.
__________4. Francesco Redi showed that maggots did not arise spontaneously from decaying meat.
__________5.Anton van Leeuwenhoek demonstrated the role of yeast in fermentation.
__________6. Louis Pasteur is noted for the development and use of simple microscopes.
Multiple Choice
7. Pasteur is credited with all of the following except:
a. construction of “swan-necked” vessels.
b. development of a vaccine for rabies.
c. development of the technique of pasteurization.
d. being the director of the Pasteur Institute in Paris, France.
e. all of the above are credited to him
8. One of the most important contributions of Robert Koch in his development of the germ theory of
disease was the:
a. use of test animals in research.
b. use of the microscope.
c. development of the technique of pure culturing.
d. development of the Bunsen Burner.
9. The total magnification of a microscope with the lower power lens (10x) and ocular lens (15x) in
position would be:
a. 25x
b.15x
c.150x
d. 1500x
10. The diaphragm on a microscope:
A. increases the magnification.
B. generally can magnify an object ten times.
C. can create three dimensional images.
D. regulates the amount of light that passes through the specimen.
Matching
Microsocope parts and functions
11. Ocular Lens_______________________________________________________________________
12. Iris/Diaphragm ____________________________________________________________________
13. Objective Lens _____________________________________________________________________
14. Coarse Adjustment Slide _____________________________________________________________
15. Fine Adjustment Slide_______________________________________________________________
Be able to label part of the microscope
Fill-ins
16. The scientist who built a crude microscope in the 1600s and who coined the term “cell” is
_______________________
17. The theory that states that microbes can invade other organisms and cause disease in the
_________________________________________.
18. “Swan-necked” flasks used to refute spontaneous generation were made by
_________________________.
19. ________________________can be used to destroy microbes that cause wine spoilage without
altering the quality of wine.
20. The scientist who formulated four postulates to associate a particular organism with a specific
disease is _________________________________.
21. The German physician who recognized the connection between autopsies and puerperal fever is
______________________________________.
22. ___________________________________developed a system with which to control surgical
infections.
23. _________________________________are substances derived from one microorganism that kill or
restrict the growth of other microorganisms.
24. A compound microscope with a single eyepiece is said to be ________________________________.
25. A microscope adjustment knob that changes the distance between the lens and the specimen very
slowly is the ____________________________________.
26. The ______________________________ of a microscope measures the light intensity.
Critical thinking
27. How is the evolution of microscopy instruments related to progress in microbiology?
28. Why is the study of microbiology important?
29. What are some major events in the early history of microbiology?
30. How do we know that microbe can cause disease?