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Name______________________ Date_________________ Section___ CELL CITY! INTRODUCTION: Organelle means “tiny organ.” Just like the human body has different organs that do special jobs for us, cells have various organelles that have special roles and do “jobs” for them. The jobs to be done in a cell could be compared to the jobs that are done in an actual city! For example, since the nucleus is the control center of the cell, it could be thought of as the “boss.” Therefore, the nucleus could be represented by the mayor since the mayor is “in charge” of a city. YOUR TASK: Design and draw your own Cell City (or a different kind of diagram) using the organelles listed as “required” on the back of this page as part of your city. Other organelles are optional. The jobs you come up with could be either PEOPLE (for example, a mayor) or PLACES (such as a factory). Use the cell packet and your textbooks (chapter 1.2 in Cells and Heredity) as resources. Be sure to include the following in your project: 1. Label each object in your Cell City that represents an organelle with the organelle name in parentheses, for example: mayor (nucleus). 2. Provide a justification with the correct function of each organelle. In your justification, it should say for example “The mayor is the nucleus because a nucleus is the control center of the cell, and a mayor controls a city.” 3. You will be placed into groups of 3 for this project (just one product from each group, not 3 products from a group of 3). 4. You may have a rough draft, but be sure that your final draft is neat (this could mean colored with markers or colored pencils). 5. Cell City is an “in-class” project. Take your time and do your best! 6. It is recommended that you work on large paper so that if you choose to present, your work will be easily visible. TOTAL = 35 points Organelles (Little Organs) REQUIRED: Nucleus: Location: near the center of the cell Function: the “boss,” is in control of cell activities Cell membrane: Location: surrounds the animal cell and is inside the cell wall of the plant cell Function: lets certain substances pass into and out of the cell, does NOT allow others Cytoplasm: Location: everywhere in the cell! Function: jelly-like structure fills most of cell, supports the organelles Mitochondria: Location: in the cytoplasm Function: known as the “powerhouse” of the cell, produces and releases energy Golgi Bodies Location: cytoplasm Function: organizes and packages substances in the cell Endoplasmic Reticulum (ER): Location: cytoplasm Function: takes materials the ribosome gathers and manufactures proteins Ribosomes: Location: on the endoplasmic reticulum and in the cytoplasm Function: gathers materials to build proteins within the cell Vesicle: Location: in the cytoplasm; these are broken off parts of the ER Function: transport materials to the golgi bodies Nuclear membrane: Location: surrounds nucleus Function: allows passage of certain substances between nucleus and the rest of the cell Chromosomes: Location: in the nucleus Function: contain the DNA code for genetics, an “instruction booklet” for the cell OPTIONAL: Cell wall: Location: surrounds the plant cell, does not exist in the animal cell Function: gives support and shape to the cell; present in plant cells Chloroplasts: Location: many places throughout the cytoplasm in plant cells Function: makes the food for plants by photosynthesis Central Vacuole: Location: cytoplasm Function: these sacs act as a storage area for protein, water, and other substances in plant cells Lysosomes: Location: cytoplasm in animal cells Function: disposes of cell’s waste, digests worn out organelles, destroys the cell when worn out