biology cell scientist Flashcards
hans and zacharis jansen
father son duo made FIRST COMPOUND OPTICAL MICROSCOPE
Robert HOOKE
looked at dead cork cells, GAVE CELLS THEIR NAME
anton van LEEWENHEOK
first to look at LIVING cells, called them animalcules
robert brown
discovered NUCLEUS
matthias SCHLEIDEN
found that ALL PLANTS ARE MADE OF CELLS
theodor SCHWANN
found that ALL ANIMALS ARE MADE OF CELLS
rudolph VIRCHOW
found that NEW CELLS COME FROM EXISTING CELLS
biotic factors -
anything that was/ is living
CELL THEORY all living things are composed of
one or more cells
CELL THEORY cells are the basic units of _____ and ______ in an organism
structure and function
CELL THEORY cells come only from ____
existing cells
new cells arise from ______
pre existing cells
full cell theory
all living things are composed of one or more cells
cells are the basuc unit of structure and function in an organism
cells come only from existing cells (new cells arise from pre existing cells)
what tool helps us study cells
compound microscope
prokaryotes are ___-
they are simple and smaller in size
small cell of a part (like an organ in a body)
organelle
prokaryotes have ______ for protein production
ribosomes
prokaryotes lack a ___-
nucleus and membrane bound organelles
_____ came before ____
prokaryotes came before eukaryotes`
endosymbiont theory is
that eukaryotes came from prokaryotes
eukaryote cells contain
a nucleus and membrane bound organelles
eukaryote organelles
mitochondrion, chloroplast, endoplasmic reticulum, golgi body, lysosomes, vacuoles
______- have a more advanced cellular organization than __________-
eukaryotes have a more advanced cellular organization than prokaryotes
single celled means
one cell (uni)
multi celled means
more than one cell (multi)
most single celled are
prokaryotic
most multicelled are
eukaryotic
a multicellular organism has _______ to perfom specific functions
a multicellular organism has groups of cells that specialize to perfom specific functions
a unicellular organism has _____ by itself
a unicellular organism has to conduct all life processes by itself
ways cells are diverse
size, shape and internal organization
cell differientation leads to
cell specialization (each cell has a specific function)
both prokary and eukary have
dna, ribosomes, cell membrane and cytoplasm
some ex of eukkaryotes are
fungi animal protist plant
some ex of prokaryotes are
archae and bacteria