Ch. 2 Pgs. 29-31 1-46
A. Multiple Choice
6. Phase-Contrast Microscope
9. Micro dissection
11. Tissue Culture
12. Mechanical System
13. Transmission Electron Microscope
14. Light System
C. Content Review
15. Testing a hypothesis.
16. To show how a natural group would react to the specific experiment, placed in the same environment as another group, but is otherwise unchanged.
17. To prove credibility and make sure the claim can be backed up.
18. A theory is made to explain things and it’s causes, the germ theory, but a law is made to show that something will always happen under a specific set of circumstances.
19. An elephant is too large to be measured in microns while a bacterium is too small to be measured in meters.
20. The objective and ocular lenses.
21. Multiplying the magnifying power of the objective and ocular lenses together.
22. (a) 430 X (b) 100 X (c) 344 X
23. The sharpness of a zoomed in image.
24. They must first be cut into thin pieces so they can be viewed, then it is embedded into either plastic or wax and allowed to harden, finally if needed stain the cells so they can be more easily viewed.
25. Stains taken in by living cells, but don’t kill the cell in the process.
26. Cells don’t have to be stained to be seen.
27. They only show a flat magnification of the specimen.
28. An electron beam is aimed through a vacuum chamber that contains electromagnets, which then focus the beam and push it into the specimen, where some of the electrons are either absorbed or scattered.
29. The materials to be separated are placed into a test tube, and are then spun around; the heavy liquids go to the bottom and settle followed by everything in order of density.
30. It’s used to control many of the tools used in micro dissections.
31. A solid material is placed in the chemical that has adherents on it the parts which stick more...