Download Prokaryotic vs Eukaryotic cells Prokaryotes

• Prokaryotes are
unicellular organisms,
found in all environments.
• Prokaryotes are the
largest group of
organisms, mostly due to
the vast array of bacteria
which comprise the bulk
of the prokaryote
classification.
• Prokaryotes do not have
an organized nucleus.
Their DNA is kind of
floating around the cell.
It's clumped up, but not
inside of a nucleus.
• No nuclear membrane:
(genetic material dispersed
throughout cytoplasm) the
DNA is clumped in an area
but there is no organized
nucleus with a membrane.
• Simple internal structure:
Prokaryotes do not usually
have any organelles. They will
probably have ribosomes
inside of their cells, but
ribosomes are not technically
considered organelles.
• very small: Because
they don't have all of
the normal cell
machinery, they are
limited in size.
• Most primitive type of
cell: (appeared about
four billion years ago)
• Staphylococcus
scherichia coli (E. coli)
Streptococcus
• Eukaryotes are generally more
advanced than prokaryotes.
• There are many unicellular
organisms which are eukaryotic,
but all cells in multicellular
organisms are eukaryotic.
• Eukaryotes are cells that can do
anything. They are the cells
that have helped organisms
advance to new levels of
specialization beyond
imagination. You wouldn't be
here if eukaryotic cells did not
exist.
• organized nucleus: Eukaryotic
cells have a "brain" for the
cell. They have a discreet area
where they keep their DNA. It
is also said that they have a
"true nucleus.“
• Complex internal structure:
Eukaryotic cells usually have
organelles. They might have
mitochondria, maybe a
chloroplast, or some
endoplasmic reticulum.
They have parts that work to
make the cell a self-sufficient
organism.
• Bigger than Prokaryotic:
Generally, eukaryotic cells are a
couple hundred times the size of
a prokaryotic cell
Eukaryotic cells can get very
large. There are even some
extreme examples called
plasmodial slime molds that can
be a meter wide. The cell is
multinucleated (many nuclei)
and it gets huge.
• Appeared approximately one
billion years ago
• Eukaryotic cells are divided into
Animal and Vegetal cells.
Fungy
animals
Plants
To learn more about this topic, go
to:
• http://encyclopedia.kids.net.au/page
/bi/Biological_cell#Features_of_prokar
yotic_and_eukaryotic_cells
• http://www.biology4kids.com/files/
micro_eukaryote.html
• http://www.biology4kids.com/files/
micro_prokaryote.html