3. Three Sections of the Cell All cells take in food, rid waste, reproduce 3 main sections –1) Nucleus –2) Cytoplasm –3) Plasma Membrane

4. Cytoplasm Jelly-like material inside of the cell Most organelles float within Job: Allow chemical reactions to take place

6. Aka: Cell Membrane Job: Allow materials to enter/exit Composition: Lipids & proteins Semi-Permeable: only specific materials may enter and exit through pores & protein channels

8. Job: Controls cell activity Inside: 1) Chromatin long strands of DNA DNA holds info to make proteins 2) Nucleolus: makes ribosomes

10. Aka: ER Rough ER: Tunnel system that transports ribosomes and proteins Smooth ER: makes fats & breaks down toxins (no ribosomes)

11. Created by nucleolus Transported by the rough ER Job: make proteins

13. Job: Package and transport proteins out of the cell Protein Creation Process Review 1) Nucleolus makes a ribosome 2) Ribosome makes protein & travels through rough ER 3) Golgi Body packages the protein into a vesicle and exports them

15. Golgi Body in action Golgi body is placing proteins (yellow dots) into protective vesicles Vesicle expels the proteins (blue dots) from the cell

16. Do Now Activity Place the following steps of protein creation in order from start to finish…. A: Golgi body packages and exports the finished proteins in a vesicle B: Ribosomes travel along the rough ER and create proteins C: Nucleolus makes ribosomes D: Ribosomes exit the nucleus

17. Powerhouse Job: Create ATP (energy molecule) in a process called cellular respiration Endosymbiosis theory: were once free living organisms that became parts of modern cells –Evidence: Own DNA & ribosomes Make proteins Replicate

19. Contain digestive enzymes Functions: 1) Kill bacteria 2) Autolysis: Destroy dying cell 3) Break down food

21. Used in movement Cilia = short hair-like extensions (numerous) Flagella = long whip-like extension (very few)

22. That one magical night, sperm cells swam with the aid of a flagellum!

24. Outermost layer of plant, fungi, & bacteria cells Job: Adds support to growing plants Made of tough cellulose –Hard to digest Witnessed by Robert Hooke in 1665 Cell membrane

25. Job: Perform photosynthesis Chlorophyll molecules absorb & convert sunlight into glucose (sugar) Endosymbiosis theory: were once free living organisms that became parts of modern cells –Evidence: Own DNA, own ribosomes, make proteins, replicate CO 2 + H 2 O + sunlight  Sugar + O 2

26. Job: Stores food, water, waste, color pigments Plant cells: Large central vacuole Animal cells: Scattered smaller vacuoles A B C

29. 1)Pick an organelle…any organelle. Describe its function. 2)Name 7 organelles that can be found within the cytoplasm. 3)Describe the pathway that proteins travel from creation to exportation. 4)List various reasons to help support the theory of endosymbiosis. 5)Name two organelles that plant cells have an animal cells do not. 6)Which organelle creates ATP energy for cells? 7)Which organelle converts sunlight into sugar? 8)Which organelle creates ribosomes? 9)Which organelle fuses with the cell membrane to release proteins? 10)Which molecule holds the information to make a protein? Review