1. Cell Structure & Function

2. Cell Theory All living things are made up of cells.
Cells are the smallest working units of all living things.
All cells come from preexisting cells through cell division.

3. Definition of Cell
A cell is the smallest unit that is capable of performing life functions.

4. Examples of Cells Amoeba (one celled animal) Plant Stem Bacteria
Red Blood Cell
Nerve Cell

5. Prokaryotic Cells - prokaryotes Eukaryotic Cells - eukaryotes
Two Types of Cells
Prokaryotic Cells - prokaryotes
Eukaryotic Cells - eukaryotes

6. Prokaryotic Cell Few internal structures No nucleus
One-celled organisms
Bacteria are prokaryotes

7. Eukaryotic Cell Contain organelles surrounded by membranes
Most living organisms are eukaryotes
Have a nucleus
Plant Cell
Animal Cell

8. Animal Cell Roundish in shape

9. Plant Cell Angular in shape

10. Cell Parts are called
organelles

11. Surrounding the Cell

12. Cell Membrane
Outer membrane of cell that controls movement in and out of the cell
Double layer

13. Cell Wall Most commonly found in plant cells & bacteria
Supports & protects cells

14. Inside the Cell

15. Nucleus Directs cell activities
Separated from cytoplasm by nuclear membrane
Contains genetic material - DNA

16. Nuclear Membrane Surrounds nucleus
Openings allow material to enter and leave nucleus

17. Chromosomes In nucleus Made of DNA
Contain instructions for traits & characteristics

18. Cytoplasm Gel-like mixture Found outside nucleus but inside
cell membrane
Where all organelles are suspended

19. Mitochondria
Produces energy through chemical reactions – breaking down fats & carbohydrates
Remember cellular respiration equation??
Cell breaks down glucose to produce energy so the cell can do its job
Glucose + oxygen carbon dioxide + water + ENERGY

20. Endoplasmic Reticulum
Moves materials around in cell
Smooth type: lacks ribosomes
Rough type (pictured): ribosomes embedded in surface

21. Ribosomes Each cell contains thousands Make proteins
Found on Endoplasmic reticulum & floating throughout the cell

22. Golgi Bodies Protein 'packaging plant' Move materials within the cell
Move materials out of the cell

23. Lysosome Digestive 'plant' for proteins, fats, and carbohydrates
Transports undigested material to cell membrane for removal
Cell breaks down if lysosome explodes

24. Vacuoles Membrane-bound sacs for storage, digestion, and waste removal
Animal cells have many small vacuoles
Plant cells have one large vacuole

25. Chloroplast Found in plant cells Contains green chlorophyll
Where photosynthesis takes place

26. Conclusion All living things are made up of cells.
Cells are the smallest working units of all living things.
All cells come from preexisting cells through cell division.