1. Cell Organelles
Eukaryotic Cells

2. Cell Parts Cells – the basic unit of life
Organelles - small structures inside a cell with specific functions.
Analogy – City of Harrisburg

3. A) Cell Membrane/Plasma Membrane
Function: Regulates materials entering and exiting the cell.
Structure: Two layers of phospholipids, proteins
Analogy – Harrisburg city limits

4. B) Cytoplasm
Cytoplasm
Function: All cell contents that lie between the cell membrane and the nucleus.
Structure: made up of fluid and organelles except for nucleus
Analogy – All air, water, life that are in Harrisburg, except City Hall

5. C) Nucleus Function: “Control Center.” Regulates DNA & RNA actions.
Structure: membrane bound, contains DNA
Analogy – City Hall

6. E) Nucleolus
Nucleolus
Function: Produces RNA, which are used to make all proteins.
Structure: Inside Nucleus, separate from DNA
Analogy – The Mayor

7. F) DNA – Deoxyribonucleic acid
DNA (chromatin)
Function: information on how to make proteins.
Chromatin – unorganized DNA (normal state)
Chromosomes – organized DNA (present before cell division
Structure: Made up of nucleotides, locked in the nucleus
Analogy – The Laws or City Code

8. G) Endoplasmic Reticulum
Rough ER
Smooth ER
Function: Transportation route for proteins.
Rough ER: has ribosomes
Smooth ER: no ribosomes
Structure: tubes and channels
Analogy – Roads & Sidewalks

9. H) Ribosomes Function: Makes proteins.
Free Ribosomes
Function: Makes proteins.
Structure: small circular organelles
Analogy – Restaurants, Factories, Builders.

10. I) Vacuoles & Vesicles
Vesicles
Function: Storage for water, nutrients or waste.
Structure: small membrane-bound organelle.
Analogy – Grocery stores, water tanks.

11. J) Lysosomes
Lysosomes
Function: packets of enzymes that break down materials in a cell.
Structure: Small membrane-bound organelles
Analogy – Recycling center

12. K) Mitochondria
Mitochondria
Function: Produce energy for the cell – site of cellular respiration. “The Powerhouse”
Structure: Double membrane-bound, kidney shaped.
Analogy – PP&L

13. L) Golgi Apparatus
Golgi Apparatus
Function: Packages, labels and ships proteins out of the cell.
Structure: Pancake-shaped layered organelle
Analogy – Post Office

14. O) Cilia & Flagella
Cilia
Flagella
Flagella
Function: provides movement for the cell or objects moving by the cell.
Structure:
Flagella – 1 long fiber
Cilia – many short fibers
Analogy – Cars or bicycles.

15. P) Chloroplasts (Plants only)
Function: site of photosynthesis (converting sun and CO2 into sugar).
Structure: Membrane bound organelles that contain chlorophyll
Analogy – Solar Panels

16. Q) Cell Wall (Plant cells only)
Function: Provides support for the cell and the plant.
Structure: Made of cellulose
Analogy – ground, rock wall

17. Cell Parts Analogy
Create an analogy (besides the city analogy) for the cell and its parts
Possible ideas:
Stadium
School
Country
Restaurant
House
Mall
Waterpark

18. Stadium Example: Cell membrane: wall of stadium, gates
Cytoplasm: everything inside the stadium.
Nucleus: the control room for the stadium.
Etc…