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25 Cards in this Set

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Robert Hooke
named the first cell, looked at a piece of cork and thought of cells
Anton van Leewenhoek
perfected the compound microscope
Cell Theory
1.) All Living things are made of cells
2.) Basic unit of structure and function
3.) New cells come from old cells
Micrometer
to measure cells
prokaryote
no nucleus, simple few structures most are bacteria
eukaryote
distinct nucleus sepration from rest of cell, complex many structures
isotonic
concentration is same inside cell as outside
hypertonic
high osmotic pressure
hypotonic
low osmotic presssurre
osmosis
is the diffusion of water through a premable membrane
diffusion
particles that move from more concentrated area to less concentrated area
equalibrium
when concentration is same inside and outside of cell.
Nucleus
in charge of cell divison, contains all the cells DNA
riobosomes
proteins are asssembled
vacuoles
storGE
always associate protein with
ribosomes
DNA & RNA
nucleic acids
passive transport
something passes in and out of the membrane without energy
concentration
amount of substance per unit volume
levels of organization
cells -->tissues-->organs-->organ systems
organ system
a group of organs that work together to perform a specfic function
specialized organism
humans- because on organ system for one job they don't share work load
unspecialized organism
can regenerate sponge can be cutup and the sponge can be thrown back in water and then more sponge
multicellular
alot of different kinds of cells
humaans are poor
regenerators