Answer the following ?s in your ISN • What do you notice about the cells that we looked at yesterday?? Are there any similarities/differences? • How can we determine if a cell is a Prokaryote or a Eukaryote?
Cell Theory 1. All living things are composed of a cell or cells. 2. Cells are the basic (smallest) unit of life. 3. All cells come from preexisting cells.
2 major types of cells Prokaryotic cell • No nucleus • No membrane-bound organelles • Circular chromosome • Eubacteria Kingdom • Archeabacteria Kingdom Eukaryotic cell • Have nucleus • Membrane-bound organelles • Evolved - like u & me • Linear chromosomes • Protista Kingdom • Fungus Kingdom • Plant Kingdom • Animal Kingdom
Prokaryotic cells Diagram
Components • Cytoplasm • Ribosomes • Nuclear Zone • DNA • Plasmid • Cell Membrane • Mesosome • Cell Wall • Capsule (or slime layer) • Flagellum