7th Grade Science Used with permission: Mr. Conner CELL CITY 7th Grade Science Used with permission: Mr. Conner

Objective: Students will understand how parts of a living cell relate to parts of a working city.

Test your knowledge Delivery Van Warehouse Power Plant Food Processing Plant City Planning Office Road System City Hall City Auditor City Limits Construction Company Test your knowledge

* * * * Test your knowledge Return to City Endoplasmic Reticulum Cytoplasm Nucleolus Mitochondria * * * * Lysosome Nucleus Endoplasmic Reticulum Ribosomes Vacuole Cell Membrane Chromosomes Test your knowledge Return to City

City Limits Cell Membrane A thin flexible covering that surrounds the cell Controls what goes in and out of the cell Controls what goes in and out of a city Return to City Return to cell

Road System Endoplasmic Reticulum Allows for movement throughout the city A network of tube-like passageways through which proteins from the ribosomes are transported Return to City Return to cell

City Hall Nucleus Controls all the activities of the city A large, round/oval structure near the center of the cell that controls all of the activities in the cell Return to City Return to cell

City Auditor Chromosomes Stores all the records of the city and passes them on as the city grows Rod-shaped bodies found in the nucleus that pass on hereditary traits Return to City Return to cell

City Planning Ribosomes Place in city hall where plans are made for the construction of the city Grain-like bodies made of RNA in the nucleolus where proteins are produced Return to City Return to cell

Food Processing Lysosomes Plant Processes large quantities of food entering the city into smaller packages that can be used more easily Small, round structures in the cytoplasm Contain digestive enzymes to break down large food into sugars Return to City Return to cell

Warehouse Vacuole A large round sac in the cytoplasm Stores water, food, wastes Stores materials needed by the city Return to City Return to cell

Construction Nucleolus Company Builds structures for the city Small dense object found in the middle of the nucleus Makes RNA for the cell Return to cell Return to city

Delivery Van Cytoplasm Delivers products made at the construction company to other locations in the city Jelly-like; Helps organelles move throughout the cell Return to city Return to cell

Power Plant Mitochondria Produces energy for the city Tiny bean shaped structure in cytoplasm Highly folded inner membrane Supplies energy for the cell by transforming sugar into energy Return to city Return to cell