microscope

magnification on low power?

4

magnification of medium power?

10

magnification on high power?

40

how much does the eyepiece multiply by?

10

provides magnification of different degrees

objective lenses

contains magnifying lense

eyepiece (ocular)

supports slide

stage

holds slide in place

stage clips

supports body tube

arm

supports microscope

base

produces light towards eyepiece

light

regulates amount of light

diaphragm

moves stage to focus on the image

coarse adjustment knob

moves stage slightly

fine adjustment knob

no nucleus, simple, DNA in cytoplasm, circular DNA

prokaryote

prokaryote example

bacteria

has nucleus, complex, DNA in nucleus, linear DNA

eukaryote

eukaryote example

animal/plant cell

first to use the word cell, 1665, dead oak cells

Hooke

first to look at living cells, 1673, discovered red blood cells

Leeuwenhoek

discovered all plants are made of cells, 1838

Schleiden

discovered all animals are made of cells, 1839

Schwann

completed cell theory, 1855, all cells come from other cells

Virchow