click below
click below
Normal Size Small Size show me how
Chapter 17
Kayla Rorrer
| Term | Definition |
|---|---|
| Cells | basic units of living organisms |
| Anton Von Leeuwenhoek | user of a smile light microscopes that contained one lense and used light to view objects (1600's) |
| Robert Hooke | Used a compound light microscope to study cork (the dead cells of oak bark) he found geometric shapes he named cells |
| Cell Theory | By Robert Hooke, Matthais Schleiden, Theodore Schwann -all organisms are composed of one or more cells - the cell is the basic unit of structure and organization of organisms - all cells come from pre-existing cells |
| Prokaryotes | unicellular organisms that dont contain any membrane bound organelles. ex:)bacteria |
| Eukaryotes | unicellular or mulitcellular organisms that contain a true nucleus and membrane bound organelles |
| Eyepiece | look through |
| Objectives | contains lens that you can focus using coarse or fine adjustment |
| Nosepiece | holds and turns the objectives into viewing position |
| Coarse Adjustment | focuses image under low power magnification |
| Fine Adjustment | sharpens image under high power magnification |
| Diaphragm | regulates the amount of light that passes through the spectrum |
| Stage | platform used to support the microscope slide |