Animal and Plant Cell
(Image)
Cell Membrane: Just Passing Through
(Interactive)
Gallery of Cells
(Image)
Nucleus, Cytoplasm, Membrane
(Video)
Organelles in the Cytoplasm
(Video)
In this activity, students explore the relationship between structure and function in a cell. They start by viewing a variety of specialized cells. They learn the three main parts of a cell -- the nucleus, cytoplasm, and cell membrane -- and discuss generally what each part does. Then, through a Web activity, they explore the gatekeeper role of the cell membrane. They follow up by examining in more detail the organelles located in the cytoplasm. Next, students compare animal and plant cells. Finally, they explore the similarities and differences among specialized cells.
1. Have students explore the Gallery of Cells stills to see the variety of specialized cells that exist in organisms. Then show the Nucleus, Cytoplasm, Membrane video and discuss the following:
2. Have students explore the Cell Membrane: Just Passing Through Web activity. Discuss the following:
3. Show the Organelles in the Cytoplasm video. Ask:
4. Have students examine the Animal and Plant Cell stills and identify the similarities and differences between the two types of cells. Ask:
5. Have students explore the Gallery of Cells stills again, this time looking for similarities and differences in the cells. Ask them to draw at least three different types of specialized cells on separate index cards and to label the cell type (animal or plant) and any recognizable cell structures. Then have students compare the different cells and describe how their structures are related to their functions.