BIO 208L Study Guide - Quiz Guide: Telophase, Paramecium, Prophase
The ability to distinguish two points in the specimen (i.e. see two points, instead of one)
relates to a problem in using light microscopes termed _resolution
2. The numerical aperature of an objective lens determines the ability of that lens to
____MAGNIFY____ portions of the specimen.
3. A stain is used to induce ___contrast___________ in the specimen.
4. The smallest element in a digital picture is refered to as a ___PIXEL__________.
5. The total magnification through a compound microscope is equal to the
magnification of the __ocular_________ times the magnification of the
____objective_____________.
6. Oil immersion improves light microscopy by increasing the __refractive
index_______________ of the medium between the objective lens and the specimen.
7. ____________________ refers to the ability to distinguish objects on each side of the
plane of focus.
8. A microscopic technique used to increase contrast in an unstained specimen is
________________.
9. ___prophase____________ is the stage of mitosis in which the chromatin material
begins to condense into individual chromosomes and the nuclear membrane begins to
disappear.
10. __anaphase_______ is the stage of mitosis when the sister chromatids begin to
separate to opposite poles.
11. __telophase_______ is the stage of mitosis in which cytokinesis, the separation of the
cytoplasm to the two daughter cells, occurs.
12. The objective lenses are held in a structure on the microscope known as the
_____NOSEPIECE______.
13. The protozoan you will study in lab this week is
________paramecium_______________.
14. The source of the tissue you will use to study mitosis is
____onion________________.
15. The specimen to be examined with a microscope is placed on what part of the
microscope? ___STAGE_____.
16. In the lab you will make scrappings of your __cheek________ to look at epithelial
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