Ch4 Book Flashcards
Paramecium
Single cellular organism
Light microscope
Visible light passed through a spectrum
Magnify objects only about 1000 time
Hooke
Discovered cells
Cell theory
All living things are composed of cells and that all cells come from other cells
Electron microscope
Focuses a beam of electrons through a specimen or onto its surface
Nanometer
Nm
Scanning electron microscope
Cells surface uses an electron beam to scan the surface of the cell
Highlights numerous Celia on paramecium
Oral groove
Indentation where food enters the cell
Transmission electron microscope
Aims an electron beam through a very thin section of a specimen just as a light microscope aims a beam of light through a specimen
Internal cell structure
Electromagnets
Used by SEM and TEM as lenses to bend a path of electrons, magnifying and focusing the image onto a monitor
Toxoplasma
Internal details of a protist