11/3/14Objective: What are the components of the cell theory?

Do Now: What is a cell?

How was the creation of this important in the discovery of

cells

Cells• What is a cell?

Sickle Cell Anemia

Contributions of Scientists

• Robert Hooke: In 1665, he observed a thin slice of cork using a light microscope and named the “compartments” cells.

• Matthius Schleiden: All plants are made of cells

• Theodore Schwann: All animals are made of cells

What are the three components of the Cell Theory?

• 1. All living organisms are made from cells

• 2. Cells are the basic unit of structure and function in living things

• 3. New cells are produced from existing cells

The Discovery of Cells• Can you see a cell with your naked eye?• How were cells discovered?Light Microscope:

Uses light to magnify objects up to 1000x

Types of Microscopes

• Scanning Electron Microscope (SEM): used to study the surface structures of cells

• Transmission Electron Microscope(TEM): used to explore internal structure of cells