STUDENT NAME DAYTIME_ LABORATORY 3: MICROSCOPES END-OF-EXERCISE REVIEW Identify
ID: 281826 • Letter: S
Question
STUDENT NAME DAYTIME_ LABORATORY 3: MICROSCOPES END-OF-EXERCISE REVIEW Identify the microscope structures. 2. 3. 5. 6. 7. 8. 9. 10. 11. A biology student wants to do mating experiments with fruit flies. First she must determine which flies are males and which are females. Compared to females male flies are slightly smaller and have a more prominent black area at the tip of their more rounded abdomen. The student temporarily puts the live flies to sleep". A. compound light B. dissecting Which microscope should she use to determine the sex of the flies? A compound light microscope with a 10X lens in the eyepiece and 5X objective lens will magnify the specimen A. 5X 12. B. 10X C. 15X D. 50X E. 150X 13. If you move the specimen to the left when using a compound light microscope the specimen will appear to move A. left C. upD. down B. right 14. How will"appear when viewed through a compound light microscope? A. B. C. D. 15. What happens to depth-of-field when you switch from low power to high power? It decreases. B. It increases. C. It remains the same (no change). A.Explanation / Answer
Answer:
1. Eye piece / Occular lens
2. Revolving nose-piece
3. Objective lens
4. Stage clips
5. Stage
6. Condenser
7. Illuminator / Light source
8. Course focus
9. Fine focus
10. Stage control knob
11. Correct answer in option (B) ; because it allows us to see larger and 3-dimentional view of even live organisms. It employs the use of lower magnification for the greater resolution.
12. Correct answer is option (D) ; to determine the total magnification, the power of objective lens is multiplied witht he power of an occular lens. This means, (5X) * (10X) = 50X.
13. Correct answer is option (B).
14. Correct answer is option (B) ; because image is viewed as reverse and inverted in a microscope.
15. Correct answer is option (B)
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