1. Cell parts
Pages 74, 77-85, 87-90

2. The Parts of the Cell

3. Organelles
--Structure within a cell that performs a certain function

4. Organelles Found in Both Animal and Plant Cells

5. 1. The Nucleus --Controls the cell --Where DNA is found --Surrounded by a nuclear envelope/membrane 2. The Nucleolus --Site where DNA is concentrated to make ribosomal RNA

6. Figure 4.8a

7. 3. Endoplasmic Reticulum
--Has two parts
--Rough ER
Interconnected flattened sacs
Makes phospholipids and proteins, moves supplies around cell
Studded with ribosomes
Smooth ER
Lacks ribosomes
Builds lipids, moves supplies around cell

8. Figure 4.10a
Figure 4.10

9. 4. Golgi Apparatus
--Flattened stacks of membranes --Sorts, packages, labels, and modifies proteins and lipids from ER --Releases molecules in vesicles

10. 5. Cytoskeleton
--Has many structures --Network of tubes and filaments --Gives the cell structure and support Ex: Cilia and Flagella (aid in movement)

11. 6. Ribosomes
--Located on the rough ER and in cytoplasm --Site of protein synthesis --Ribosomes are made by the nucleolus

12. 7. Peroxisomes 8. Vacuole -- Break down alcohol
--Neutralize free radicals
8. Vacuole 
-- Mainly storage (water and sugar)

13. 9. Mitochondria --Converts sugar into cellular energy (ATP)
--Contains its own DNA
--singular is “mitochondrion”
--“power house” of the cell

14. Figure 4.17
Figure 4.17

15. Organelles Found ONLY in Plant Cells

16. 10. Chloroplast
--Converts light energy to carbohydrates --Has stacks of thylakoids --Has its own DNA

17. 11. Central Vacuole --Stores water, waste products, and nutrients
--Maintains hydrostatic pressure

18. 12. Cell Wall
--Lies outside the plasma membrane --Contains cellulose --Gives structure and support

19. Organelles Found ONLY in Animal Cells

20. 13. Centrioles --Aid in cellular division

21. --recycle old cell parts and kills bacteria
14. Lysosomes
--vesicles used to digest waste
--recycle old cell parts and kills bacteria
--contain degrading enzymes
(to "lyse" means to dissolve)
 TAY-SACHS disease – missing an enzyme of the lysosomes that breaks down a fatty substance.  Over time this fat builds up in the brain and nervous tissue, smothering the cells.  Results in degeneration and death.