1. 3.2 Cell Organelles KEY CONCEPT Eukaryotic cells share many similarities.

2. 3.2 Cell Organelles Cells have an internal structure.

3. 3.2 Cell Organelles Cells have an internal structure. The cytoskeleton has many functions.

4. 3.2 Cell Organelles Cells have an internal structure. The cytoskeleton has many functions. – –supports and shapes cell

5. 3.2 Cell Organelles Cells have an internal structure. The cytoskeleton has many functions. – –supports and shapes cell – –helps position and transport organelles

6. 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

7. 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

8. 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

9. 3.2 Cell Organelles Several organelles are involved in making and processing proteins.

10. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. The nucleus stores genetic information.

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.

12. 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.

13. 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

14. 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

15. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued)

16. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued) Ribosomes link amino acids to form proteins.

17. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued) Ribosomes link amino acids to form proteins. The Golgi Apparatus is responsible for taking in materials, packaging them into vesicles, and directing them to different parts of the cell, or out of the cell. Vesicles are membrane-bound sacs that hold materials.

18. 3.2 Cell Organelles Other organelles have various functions.

19. 3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell.

20. 3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell. Vacuoles are fluid-filled sacs that hold materials.

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.

22. 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.

23. 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.

24. 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.

25. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts.

26. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts. A cell wall provides rigid support.

27. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts. A cell wall provides rigid support. Chloroplasts convert solar energy to chemical energy.