bio microscopes

cell

basic structural unit of all life forms

cell theory 3 parts

cells are basic unit of life

cells arise from other preexisting cells

every living organism is made of cells

year of discovery

1655

cells discovered by

Robert hooke

first cell theory by who

scheiden and schwan in 1830s

transition electron microscope

most common best resolution magnify up to 15000000x

scanning electron microscope

good 3d imaging worse resolution than TEM

difference between electron and light microscopes

electron use electron beam and electromagnetic lenses

light microscopes use

light rays, 2 glass lenses

light microscope magnifies

up to 2000x

electron microscope magnifies

up to 2000000x

usefulness of microscopes in regards to cell structure

enabling scientists to visualize and study cells, which are too small to be seen with the naked eye