Cells Flashcards
Discovered cells using a microscope on a thin piece of cork
Robert Hooke
Improved the microscope and found bacteria on scraping of his teeth
Anton van Leeuwenhoek
Concluded that all plants are made up of cells
Matthias Schleiden
Concluded that all animals were made up of cells
Theodor Scwhann
All living things are composed of cells
The cell is the basic unit of structure and function for living things
New cells come from existing cells
Cell theory tenets
Stated that all cells come from existing cells
Rudolph Virchow
One called organism
Unicellular
Organism with multiple cells
Multicellular
“old” cell with no nucleus
Prokaryotic
Cell with nucleus
Eukaryotic
Microscope that uses light and two or more lens that have up to 400x or 1000x magnification
Compound light microscope
Simple microscope that only uses one lens, like a magnifying glass
Stereoscope
Specimen must be encased in gold or other conductive material, see 3D topography and up to 500,000x magnification
Scanning election microscope
Specimens must be cut thinly into slices after being frozen or encased in plastic, electrons are transmitted thought the specimen with 2d images, up to 1,000,000x magnification
Transmission election microscope
Lens at the eyepiece of a simple microscope 10x
Ocular lens
Lens at the nose piece of a simple microscope, 10x 4x 40x
Objective lens