1. What Do Cells Do?

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3. Activity 4: What Do Cells Do? Get Started  What structures must all cells have in order to function and grow?  What are some differences between plant and animal cells? Look at your drawing of a cell from the previous activity.

4. Activity 4: What Do Cells Do? Introduction  Membrane-bound structures inside some cells are called organelles. Read the introduction.

5. Activity 4: What Do Cells Do?  What are the functions of the structures in cells? Challenge

6. Activity 4: What Do Cells Do? Procedure  Follow the directions on Student Sheet 4.1, “Structure and Function of Cells,” to complete the simulation. Part A: Computer Simulation

7. Activity 4: What Do Cells Do? Procedure Use information from the reading about bacterial cells to change or add to your Venn diagram from Part A.

8. Activity 4: What Do Cells Do? Follow Up  A. Describe the structures an animal cell must have for it to produce a protein.  B. Explain how these structures work together to produce a protein. Analysis 2

9. Activity 4: What Do Cells Do? Follow Up  What functions do all cells – plant, animal, and bacterial cells – need to perform in order to survive?  What structures do all cells have in common in order to perform these functions?

10. Activity 4: What Do Cells Do?  What are the functions of the structures in cells? Revisit the Challenge

11. Activity 4: What Do Cells Do? Key Vocabulary  bacteria  cell membrane  cell wall  cilium, cilia  cytoplasm  cytoskeleton  endoplasmic reticulum (ER)  eukaryotic cell  flagellum, flagella  Golgi apparatus  lysosome  nucleus  organelle  prokaryotic cell  ribosome  vacuole  vesicle Key Vocabulary