1. Life-sustaining processes and survival of species
Cellular components visible under a microscope

2. What are the main cellular components visible under a microscope?
Animal cells : The cellular membrane, the cytoplasm, the nucleus and the nuclear membrane
Plant cells : Same as animal cells + cell wall, the vacuole and the chloroplasts.

3. Image visible under a microscope

4. The eyepiece
Part you look through
Magnifies image by 10x

5. The arm
Connects base to body

6. The objective lenses Magnifies specimen
Magnifying lens must be multiplied by eyepiece to get total magnification
Ex: 10x (eye piece) X 4x (objective lens) = 40x magnification

7. The revolving nosepiece
Holds the objective lenses
Rotates so you can have different views of specimen

8. The Stage
Holds the slide
Allows light to pass through slide

9. The mechanical stage
Mechanical system that allows you to move the slides horizontally along the stage.

10. Stage clips
Hold slide in place

11. Light source
Illuminates specimen

12. Diaphragm
Adjust the lighting of the object being observed.

13. Coarse adjustment knob
Bring image into focus

14. Fine adjustment knob Bring image into fine focus
Used after the coarse-focus knob

15. Base
The base supports the microscope