1. Organelles of the cell

2. What type of cells are you??
Prokaryotic?
Eukaryotic?

3. Eukaryotic cells
dozens of structures and internal membranes, and many are highly specialized.
also contain a nucleus

4. Nucleus
Gives instructions to the rest of the cell for how to make proteins and other important molecules
It contains nearly all the cells DNA
Tom Callahan- Tommy Boy

5. Components of the nucleus
Nuclear envelope
Chromatin
Nucleolus

6. Nuclear envelope Surrounds the nucleus
Contains thousands of pores that let materials flow into and out of the cell

7. Chromatin Granular material that surrounds the nucleolus.
It is made of DNA twisted around a protein.

8. Chromosomes When a cell divides, chromatin condenses into chromosomes
Thread like structures that contain genetic information of a cell

9. Nucleolus Contained within the nucleus
Where the assembly of ribosomes begins

10. Questions?

11. Prokaryotes do not contain a nucleus.
Q: If the nucleus controls most of the cell processes in eukaryotes, how can prokaryotes live without a nucleus?

12. Answer
The most important part of a nucleus is the DNA it contains, and prokaryotes have DNA without having a nucleus

13. Ribosomes Where the production of proteins takes place
It is the smallest organelle
Factory workers in Tommy Boy- Produce brake pads

14. Endoplasmic Reticulum

15. Rough ER
Has cells that produce large amounts of protein for export

16. Smooth ER Has specialized tasks including synthesis of membrane lipids
Detoxification of drugs
Seen in huge amounts in the liver cells

17. Golgi Apparatus Where proteins go after the endoplasmic reticulum
It modifies, sorts and packages proteins for storage in the cell or secretion outside the cell
Customizing shop

19. Textbook Pg
Compare the differences between the Endoplasmic Reticulum and the Golgi Apparatus

20. Lysosomes The clean up crew
Filled with enzymes that digest lipids, carbohydrates, and proteins into smaller molecules
Recycle worn out cell parts

22. Vacuole Storage compartments Big central vacuole in plant cells
Largest organelle in the plant cell

25. Mitochondria The power house of the cell
Factories hooked up to local power companies
Converts one source of energy into a more useful one.
Coal, gas, etc.

27. Questions?

28. Chloroplasts
Capture energy from the sunlight and convert it into chemical energy
Photosynthesis
Solar cars

29. Cytoskeleton
A network of protein filaments that helps the cell maintain its shape
Microtubules
Microfilaments

30. Microtubules Hollow and made of protein Aid in cell structure
Pull chromosomes apart during cell division
Help build cilia and flagella

32. Microfilaments Threadlike structures made of protein
Form extensive networks
Tough flexible framework supports the cell

33. How is this like cytoskeleton?