1. The Discovery of the Cell Microscopes allowed scientist to study microorganism.

2. Types of microscopes Compound microscope- uses lenses and light to magnify objects up to 1500 times

3. Electron- uses a beam of electrons to magnify objects 500,000 times. a.Specimens must be examined in a vacuum. b.Specimen cannot be alive.

4. The microscope allowed for the Cell Theory to be made. Cell Theory 1. All living things are made of cells. 2. Cells are the smallest living structure. 3. All old cells give rise to new cells.

5. Basic Cell Types Prokaryotes- primitive cells a.No membrane bound organelles b.Unicellular c.Ex- bacteria

6. Eukaryotes- advanced cells a.Has membrane bound organelles b.Most are multicellular c.Ex- liver cell, yeast, algae, brain cell