Prokaryotic and eukaryotic cells. Organelles.

1. Events and contributions

2. The Cell Theory states:
* All living organisms are composed of cells.
They may be unicellular or multicellular.
* The cell is the basic unit of life.
* Cells arise from pre-existing cells.

3. The modern version of the Cell
Theory includes the ideas that:
*Energy flow occurs within cells.
*Heredity information (DNA) is passed on
from cell to cell.
*All cells have the same basic chemical
composition.

5. Prokaryotic and Eukaryotic cell

6. Animal and Plant cell

7. Animal and plant cells have
features in common?
• Cell membrane
• Nucleus: contains DNA and nucleolus
• Cytoplasm
• Compartmentalization of cells: presence of
organelles (each organelle, special function)
• Mitochondria
• Ribosomes

8. Differences between animal and
plant cells
• Animal cells have a centriole and lysosomes.
• Plant cells have a cell wall (and
plasmodesmata), a large permanent vacuole
and chloroplasts.

9. Animal Cell