1. Cells: The Basic Units of Life Arethia Smith Instructional Technology

2. Hmmm….What do you know? ► How are the cells that make up living things like bricks? Explain your answer based on what you know about cells.

3. Intro-Activity ► Research at least five cells of the human body. Include a brief description of what each type of cell does.

4. Let it Roll ► Watch the following movie clip to learn more about cells. ► http://player.discoveryedu cation.com/index.cfm?guid assetid=a8258a12-ff4b- 47b1-aed8-17989f765ab4 http://player.discoveryedu cation.com/index.cfm?guid assetid=a8258a12-ff4b- 47b1-aed8-17989f765ab4 http://player.discoveryedu cation.com/index.cfm?guid assetid=a8258a12-ff4b- 47b1-aed8-17989f765ab4 ► Make sure you are answering the questions as the movie plays.

5. Diversity of Cells ► Diversity of Cells -Cells were not discovered until microscopes were invented in the 1600’s. -Cell theory states: 1. All organisms are made of cells, 2. the cell is the basic unit of all living things, and 3. All cells come from other cells. ► All Cells have a cell membrane, cytoplasm and DNA.

6. Diversity of Cells cont’d ► Two basic types of cells are prokaryotic and eukaryotic. ► Eukaryotic cells have a nucleus and membrane-bound organelles. Prokaryotic cells do not. Eukaryotic cells Prokaryotic ► Eukaryotes can be single-celled or multicellular.

7. Diversity of Cells cont’d ► Eukaryotic cells have organelles that perform functions that help cells remain alive. ► The nucleus or a eukaryotic cell contains the cell’s genetic material, DNA. nucleusDNAnucleusDNA ► Ribosomes are the organelles that make protein. Ribosomes

8. Diversity of Cells cont’d ► The endoplasmic reticulum and the Golgi complex make and process proteins before they are transported to other parts of the cell or out of the cell.endoplasmic reticulumGolgi complex ► Mitochondria and chloroplast are organelles that provide chemical energy for the cell. Mitochondria chloroplast

9. Diversity of Cells cont’d ► Lysosomes are organelles responsible for digestion with the cells. Lysosomes ► In plant cells, Vacuoles store cells materials and act like large lysosomes. plant cellsplant cells

10. It’s Exploration Time!!! ► It’s time to explore the cell!! Click on the following website and complete the activities as instructed on the site. Enjoy!!! ► http://www.ccboe.net/ Teachers/cottingham_s ue/cellswebquest.html http://www.ccboe.net/ Teachers/cottingham_s ue/cellswebquest.html http://www.ccboe.net/ Teachers/cottingham_s ue/cellswebquest.html