Cell Organelles organelle = tiny organ

1. Cell Organellesorganelle = tiny organ If you think of a cell like a city, each organelle would be a building; with its own structure and job to do.

2. NUCLEUS • Description of Structure • Spherical body usually near the center of a cell • Function of Structure • Controls all cells activities • Directs Growth and Reproduction • Control Center • City Hall

3. NUCLEAR MEMBRANE • Description of Structure • Thin, two layered (porous) structure surrounding nucleus • Function of Structure • Controls movement of materials in and out of nucleus • “Nuclear Gatekeeper” • City Hall Security

4. NUCLEOLUS • Description • Irregular/ Spherical bodies within nucleus • Function • Storehouse of RNA • Synthesis of RNA to make Ribosomes • Disappears during cell reproduction • Mayor’s Office inside City Hall

5. CHROMATIN THREADS • Description • Long, tin coiled fibers containing DNA and Protein • Function • Contains DNA code that controls all cell reactions • Carriers genetic code that determines heredity. • City Blueprints https://www.youtube.com/watch?v=9kQpYdCnU14

6. CELL MEMBRANE • Structure • Flexible, thin porous two-layered structure surrounding cell • Function • Controls movement in and out of cell • Shapes and protects the cell • Security Fence around City

7. CYTOPLASM • Structure • Semifluid/ jelly-fluid material of cell surrounding nucleus • Function • Main storehouse of chemicals and organelles • Where chemical reactions of life occur • City Grounds/ Lawns

8. ENDOPLASMIC RETICULUM (E.R.) • Structure • Complex series of membrane channels that form branching, net-like maze from cell membrane to nuclear membrane • Function • Transport of materials throughout cell • Divides cell into compartments • Highway System

9. RIBOSOMES • Description • Tiny dense bodies which lie on the edges of E.R. or in clusters in cytoplasm (Free ribosomes) • Function • Site of Protein Synthesis • Factories

10. GOLGI COMPLEX • Structure • Stack of flattened saccules. “Stacks of stacks.” • Function • Synthesis, Storage, Secretion of Large Molecules • Package and deliver molecules outside of cell • May manufacture lysosomes • Post Office or Fed-Ex Center

11. https://www.youtube.com/watch?annotation_id=annotation_937748&feature=iv&src_vid=LP7xAr2FDFU&v=fKEaTt9heNMhttps://www.youtube.com/watch?annotation_id=annotation_937748&feature=iv&src_vid=LP7xAr2FDFU&v=fKEaTt9heNM

12. LYSOSOMES • Structure • Oval, bag-like structures containing small particles and enzymes • Function • “Suicide Sac” • Digest food particles • Digest worn-out organelles • Recycling Center https://www.youtube.com/watch?v=ekdIEpSf-1I

13. VACUOLES • Structure • Small bubble or cavities in the cytoplasm • Clear/ Colorless • Function • Storage of Water and Food • Helps maintain internal pressure • City Water tower/ Warehouse https://www.youtube.com/watch?v=_TULYTNhEoE

14. ENDOCYTIC VESICLE • Structure • Sac-like infoldings of cell membrane • Function • Transport of food/large particles into cell • Large Particle Intake • Forms Vacuoles • Food Trucks

15. MITOCHONDRIA • Structure • Spherical or Sausage shaped bodies with shelf-like membranes (cristae) • Function • Energy Production • High Number in Active Cells (muscles) • Electrical Powerplant https://www.youtube.com/watch?v=RrS2uROUjK4

16. CENTROSOME WITH CENTRIOLES • Structure • Spherical body edges the nucleus which contains 2 cylindrical centrioles • T- shaped • Function • Helps DNA separate during cell division • Where Microtubules are Made • Forms Spindle Fibers • City Construction Office

17. MICROTUBULES • Structure • Tiny tube-like structures • Hollow, rigid • Function • Acts like Cell Skeleton, Give cell shape • Makes cell rigid • Scaffolding, Iron Beam, Nails, etc.