1. The Parts Inside of a Cell
Cell Organelles
The Parts Inside of a Cell

2. A Look Inside the Cell Each cell contains smaller parts
Organelle = tiny cell structure that carries out a specific function within the cell

3. Surrounding the Cell

4. Cell Membrane (a.k.a. Plasma Membrane)
Outer membrane of cell that controls what comes into and out of the cell
Allows good stuff in and lets wastes out of cell
“gateway” of the cell

5. Cell Membrane is a screen
What does a window screen do?
What things are kept out of a window screen?
What things can get in a window screen?
A screen is similar to the cell membrane in a cell.

6. Cell Wall Not all cells have cell wall!
Most commonly found in plant cells & bacteria
Not in animal cells
Supports & protects cells

7. Inside the Cell – The Center

8. Nucleus Cell’s control center – directs cell’s activities
Separated from the rest of the cell by nuclear membrane
Contains genetic material – DNA
BRAIN of the cell

9. Inside the Cell – In the Cytoplasm

10. Cytoplasm Gel-like mixture that constantly moves
Between cell membrane and nucleus
Holds organelles
Site for chemical reactions

11. Endoplasmic Reticulum (ER)
Moves materials around in cell
Smooth type: lacks ribosomes
Rough type (pictured): ribosomes embedded in surface
Like the highway system for the cell

12. Ribosomes Make proteins Each cell contains thousands
Found on endoplasmic reticulum & floating throughout the cell
“Factories” for the cell

13. Mitochondria
Convert energy in food molecules (sugars) to energy (ATP) the cell can use to carry out its activities
“Powerhouse” or “Energy Plant” of cell

14. Golgi Bodies or Golgi Apparatus
Looks like stacked “pancakes”
Protein 'packaging plant'
Move materials within the cell
Move materials out of the cell
Like the “UPS store” for the cell

15. Lysosome Contains chemicals that breaks down some materials in cell
“janitor” for the cell

16. Vacuoles Provide storage for cell Store materials needed for cell
Also store wastes for cell

17. Chloroplast Usually found in plant cells (Autotrophs)
Contains green chlorophyll
Where photosynthesis takes place
Captures energy from sunlight to make energy for cell