Activity 3.3.1 Cell Parts



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[pic]Activity 3.3.1 – Cell Parts

Purpose

What makes an organism live, breath, and function? Like your body, plants are comprised of cells, which are the basic building blocks of life. Each cell is made up of several parts called organelles that serve important functions for the cell to live, and thus for the plant to survive. There are two main classifications of cells: prokaryote (pro-car-e-ot) and eukaryote (u-car-e-ot).

Prokaryotes are very simple cells with no nucleus or membrane-bound organelles. They are typically one-celled organisms including bacteria and blue-green algae.

Eukaryotic cells are more complex. The cells range from single-celled organisms, such as paramecium and protozoa, to very specialized cells within a plant or animal, such as blood and muscle tissue. Eukaryotic cells have a cell membrane that is selectively permeable allowing transfer of waste and nutrients, a membrane-bound nucleus containing DNA, and organelles that are specialized parts within cells.

What is different between animal and plant cells? This activity takes you on a journey through the various organelles and structures of eukaryotic cells focusing on plant and animal cells. You will see animations of each cell part and understand the function of each part. From this activity, you will also be able to determine similarities and differences between plant and animal cells to allow you to make important connections for plant and animal anatomy and physiology.

Materials

|Per pair of students: |Per student: |

|Computer with Internet access |Pencils |

|Colored pencils |Agriscience Notebook |

Procedure

You and a partner will access Cells Alive Website and draw cell parts in the space provided below. Once the diagram for plant and animal cells is labeled appropriately according to the website diagram, you and your partner will record information related to the function of each cell part. Please follow the directions outlined below.

1. Access Cells Alive at URL:

2. Click on “Animal Cell” or “Plant Cell” at the bottom of the animation screen.

3. Draw a representation of each cell part seen for both the animal and plant cells respectively using colored pencils. Take note of the cell shape when drawing the initial outline for animal and plant cells.

4. Scroll the pointer over the name of each cell part included on the list provided. The animation will highlight the corresponding part in the illustration.

5. Label your drawings with the appropriate name for each cell part.

6. Complete Table 1 for the function related to each cell part. Be sure to highlight information that indicates a difference between animal and plant cell structure or function.

7. When you and your partner have are finished, answer the Conclusion questions.

|Plant Cell Illustration: |

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|Animal Cell Illustration: |

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|Table 1. Organelle Function |

|Cell Part |Function in a Plant Cell |Function in an Animal Cell |

|Nucleus | | |

|Nucleolus | | |

|Cytosol (Cytoplasm) | | |

|Centrosome | | |

|Centriole | | |

|Golgi Apparatus | | |

|Lysosome | | |

|Peroxisome | | |

|Secretory Vesicle | | |

|Cell Membrane | | |

|Mitochondria | | |

|Vacuole | | |

|Cell Wall | | |

|Chloroplast | | |

|Smooth Endoplasmic | | |

|Reticulum | | |

|Rough Endoplasmic | | |

|Reticulum | | |

|Ribosomes | | |

|Cytoskeleton | | |

Conclusion

1. Write two or three sentences that describes the purpose and function of a cell.

8. What are the visible anatomical features that are different between an animal cell and a plant cell?

9. In learning about the parts of cells, what surprised you the most that you learned or you did not know before?[pic][pic]

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