1. 3.2 Cell Organelles

2. KEY CONCEPT Eukaryotic cells share many similarities.

3. 3.2 Cell Organelles Cells have an internal structure. The cytoskeleton has many functions. – –supports and shapes cell – –helps position and transport organelles – –provides strength – –assists in cell division

4. 3.2 Cell Organelles The Parts of The Eukaryotic Cell: 7) Support Cytoskeleton –A network of thin, fibrous materials that act as a scaffold and support the organelles. –Microtubules – hollow filaments of protein. –Microfilaments – solid filaments of protein.

5. 3.2 Cell Organelles Cells have an internal structure. The cytoskeleton has many functions. – –supports and shapes cell – –helps position and transport organelles – –provides strength – –assists in cell division – –aids in cell movement

6. 3.2 Cell Organelles Several organelles are involved in making and processing proteins.

7. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. The nucleus stores genetic information.

8. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. The nucleus stores genetic information. Many processes occur in the endoplasmic reticulum.

9. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. The nucleus stores genetic information. Many processes occur in the endoplasmic reticulum. There are two types of endoplasmic reticulum.

10. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. The nucleus stores genetic information. Many processes occur in the endoplasmic reticulum. There are two types of endoplasmic reticulum. – –rough endoplasmic reticulum

11. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. The nucleus stores genetic information. Many processes occur in the endoplasmic reticulum. There are two types of endoplasmic reticulum. – –rough endoplasmic reticulum – –smooth endoplasmic reticulum

12. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued)

13. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued) Ribosomes link amino acids to form proteins.

14. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued) Ribosomes link amino acids to form proteins. Vesicles are membrane-bound sacs that hold materials.

15. 3.2 Cell Organelles Other organelles have various functions.

16. 3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell.

17. 3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell. Vacuoles are fluid-filled sacs that hold materials.

18. 3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell. Vacuoles are fluid-filled sacs that hold materials. Lysosomes contain enzymes to digest material.

19. 3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell. Vacuoles are fluid-filled sacs that hold materials. Lysosomes contain enzymes to digest material. Centrioles are tubes found in the centrosomes.

20. 3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell. Vacuoles are fluid-filled sacs that hold materials. Lysosomes contain enzymes to digest material. Centrioles are tubes found in the centrosomes. – –Centrioles help divide DNA.

21. 3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell. Vacuoles are fluid-filled sacs that hold materials. Lysosomes contain enzymes to digest material. Centrioles are tubes found in the centrosomes. – –Centrioles help divide DNA. – –Centrioles form cilia and flagella.

22. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts.

23. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts. A cell wall provides rigid support.

24. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts. A cell wall provides rigid support. Chloroplasts convert solar energy to chemical energy.