Cells Are Like Cities
Exploring Cell Organelles Through City Analogies Grade 6 Science
What Do These Have in Common?
Look at these two images What similarities do you notice? How might they work in similar ways?
The Nucleus: City Hall
Controls all cell activities Contains the cell's DNA (instructions) Makes important decisions for the cell Just like City Hall controls the city!
Mitochondria: The Power Plant
Produces energy for the cell Converts food into usable energy (ATP) Cells have many mitochondria Powers everything the cell does!
Cell Membrane: City Gates and Borders
Controls what enters and leaves the cell Acts like a security checkpoint Keeps harmful things out Lets important materials in
Ribosomes: Busy Factories
Make proteins for the cell Found throughout the cell Work like assembly lines Produce what the cell needs to function
Endoplasmic Reticulum: The Highway System
{"left":"Rough ER: highways with factories attached\nSmooth ER: highways for transport only\nMoves materials around the cell","right":"Connects different parts of the cell\nLike roads connecting all parts of a city\nEnsures everything gets where it needs to go"}
Lysosomes: Waste Management Center
Break down waste and worn-out parts Clean up the cell Digest harmful substances Keep the cell healthy and functioning
Create Your Own Cell City!
Draw a city map with cell organelle buildings Label each building with its organelle name Add arrows showing how they work together Be creative with your city design!
Remember This!
"Just like a city needs different parts working together to function, a cell needs all its organelles working together to stay alive and healthy."