THE TWO BASIC CELL TYPES PROKARYOTES vs. EUKARYOTES

The first cells were prokaryotes  Prokaryotic is from the Greek pro, meaning “before,” and karyon, meaning “kernel,” referring to the nucleus.  They lack membrane-enclosed organelles.  Possess very simple internal structure  Generally smaller than eukaryotic cells  Bacteria and Mycoplasmas are prokaryotes  The do possess ribosomes

Typical Bacterial Cell

Eukaryotic Cells  Eukaryote comes from the Greek, eu, meaning “true,” and karyon.  Eukaryotic cells are generally quite a bit larger than prokaryotic cells.  They contain many membrane-enclosed organelles, including a nucleus.  Plant cells and animal cells are eukaryotic

Typical Eukaryotic Animal Cell

To Learn More, Visit The Following Websites Sites  The Biology Project: Prokaryotes, Eukaryotes, and Viruses Tutorial The Biology Project: Prokaryotes, Eukaryotes, and Viruses Tutorial The Biology Project: Prokaryotes, Eukaryotes, and Viruses Tutorial  Wikipedia – The free on-line encyclopedia Wikipedia – The free on-line encyclopedia Wikipedia – The free on-line encyclopedia  Cells Alive – A great site for everything concerning cells Cells Alive – A great site for everything concerning cells Cells Alive – A great site for everything concerning cells