Cell types Flashcards
Eukaryotes
Eukaryotic cells came into being through the process of evolution.
Prokaryotes
Were the only form of life on Earth for millions of years
Examples of eukaryotes
Animals and plants
Examples of prokaryotes
Bacteria and archea
Eukaryotic nucleus
Present
Prokaryotic nucleus
Absent
Eukaryotic number of chromosomes
More than 1
Prokaryotic number of chromosomes
One–but not true chromosome: Plasmids
Eukaryotic cell type
Usually multicellular
Prokaryotic cell type
Usually unicellular (some cyanobacteria may be multicellular)
Eukaryotic genetic recombination
Meiosis and fusion of gametes
Prokaryotic genetic recombination
Partial, undirectional transfers DNA
Eukaryotic mitochondria
Present
Prokaryotic mithocondria
Absent
Eukaryotic cytoskeleton
Present
Prokaryotic cytoskeleton
May be absent
Eukaryotic ribosomes
larger
Prokaryotic ribosomes
smaller
Eukaryotic vesicles
present
Prokaryotic vesicles
present
Eukaryotic choloplasts
Present (in plants)
Prokaryotic choloplasts
absent
Eukaryotic plasma membrane with steroid
Yes
Prokaryotic plasma membrane with steroid
Usually no
Eukaryotic cell wall
Only in plant cells and fungi (chemically simpler)
Prokaryotic cell wall
Usually chemically complexed