1. Cell Overview Cells are the basic unit of life.
Cells are classified as prokaryotes or eukaryotes
Cells
Prokaryote
Eukaryote

2. Prokaryotes Oldest cells – probably the first life on earth
Very simple cells composed of 2 main parts
Cell Membrane – the outer boundary of the cell
Cytoplasm – jelly-like interior of the cell
The name prokaryote comes from the Greek pros meaning “before” and karyon meaning “nut”, referring to the nucleus
Most prokaryotes are single celled organisms
Example: bacteria

3. Eukaryote More advanced cells Found in plants and animals
Eukaryotic cells are composed of 4 main parts:
Cell Membrane – the outer boundary of the cell
Cytoplasm – jelly-like interior of the cell
Nucleus – the control center of the cell which contains the cell’s genetic material (DNA)
Organelles – structures that carry out cell functions
Organisms can be single-celled or multicellular

4. Eukaryotes Plant cell Animal cell Examples: Single Celled – algae
Multicellular - onion
Examples:
Single Celled: Amoeba, Protozoan
Multicellular: Human