Introduction to cellular processes and structures

This ppt goes through the different types of cells and how they are different it is only a mini lesson meant to introduce the topic

1. Introduction to Cells

2. What are Cells Are the Smallest unit of life that can live on its own. Make up all living things Two main categories of Cells Prokaryote Eukaryote

3. Discovery of Cells First Discovered by Robert Hooke (1655) Used a compound microscope to look at a cork and first described his observations as “Cells”

4. Other Contributors Anton van Leeuwenhoek (1674) made powerful single lens microscope. One of first to look at and describe living cells Matthias Schleiden (1838) Proposed all plants are made of cells Theodor Schwann (1839) Concluded that animals are also made of cells Rudolf Virchow (1855) Proposed that all cells come from pre-existing cells

5. Cell Theory All living things are composed of one ( unicellular ) or multiple cells ( multicellular ). Cells are the basic unit of life of the structural organization of an organism. All cells come from pre-existing cells

6. Cell Types

7. Prokaryotic Cells Single-celled Microorganisms that were thought to be some of the first life on earth. Lack organelles present in Eukaryotic Cells Prokaryotic Cells Have Cellular capsule Cell wall Flagellum Organisms that have Prokaryotic Cells Bacteria Archaea

8. Eukaryotic Cells Contain Organelles that are not present in Prokaryote Cells. Animals Plants Fungi Some Unicellular Organisms Eukaryotic Cells have Chloroplasts Mitochondria Endoplasmic Reticulum Lysosomes Golgi apparatus Eukaryotic Cells have a more complex construction that prokaryotic cells.

9. Let's Look At Some Cells!