1. Ms. Ethridge, Ms. Milstead, Ms. Myers, Ms. Palermo
Cell Parts
Ms. Ethridge, Ms. Milstead, Ms. Myers, Ms. Palermo

3. Objectives Identify the cell parts of an animal.
Focus on the functions of the cell parts.

4. The Parts of the Cell

5. Cytoplasm - fluid filled interior of cell - suspends cell organelles
Figure 4.6a

6. The Nucleus 
Figure 4.6a

7. Nucleus
Surrounded by a nuclear envelope with nuclear pores
Contains the genetic information (DNA) which exists as chromatin in a non-dividing cell
Controls all cell activities
Nucleolus
In the center of the nucleus
Produces the ribosomes

8. Cell Membrane
The thin layer of protein and fat that surrounds the cell. The cell membrane is semi permeable, allowing some substances to pass into the cell and blocking others.

9. Figure 4.8a

10. Chromosomes
Eukaryotes (cells with nuclei such as those found in plants, yeast, and animals) possess multiple large linear chromosomes contained in the cell's nucleus.
In the nuclear chromosomes of eukaryotes, the uncondensed DNA exists in a semi-ordered structure, where it is wrapped around histones (structural proteins), forming a composite material called chromatin.

11. Mitochondria - Produces cellular energy in the form of ATP through a process called cellular respiration (metabolizes glucose)

12. Figure 4.17
Figure 4.17

13. Ribosomes
-site of protein synthesis -links amino acids together to form proteins

14. Endoplasmic Reticulum - transport system within the cell - transport cell materials - two types: rough (with ribosomes) and smooth

15. Rough ER -has ribosomes which give it its "rough" appearance -functions in protein synthesis Smooth ER -mostly contains enzymes that function in lipid synthesis)

16. Figure 4.10a
Figure 4.10

17. Golgi Apparatus      
--flattened stacks of membranes --collects, packages and modifies cell materials to be used in other parts of the cell or transported out of the cell

19. Lysosomes
-digests and recycles old cell parts, sometimes bacteria -contain high levels of enzymes

21. Vacuole 
mainly storage of water
in plant cells, some waste
- some animal cells have small vacuoles

22. Centrioles
- used during cell division to move and separate chromosomes
only found in animal cells

23. Figure 4.7a
Figure 4.7a

24. Figure 4.13
Figure 4.13

25. Figure 4.16
Figure 4.16

26. Figure 4.17a
Figure 4.17a

27. a. ________________ b. ________________ c. _________________
d.  _________________
e.  _________________
f.  __________________
Pg 81 f.

28. Objectives Identify the cell parts of an animal.
Focus on the functions of the cell parts.