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 Proteus Plant Stem Bacteria Red Blood Cell
Nerve Cell

5. Prokaryotic Eukaryotic
Two Types of Cells
Prokaryotic
Eukaryotic

6. Prokaryotic
Do not have structures surrounded by membranes (no nucleus [PRO NO], mitochondria, chloroplast, ER, Golgi
Few internal structures
One-celled organisms, Bacteria
Do have: DNA, ribosomes, plasma membrane

7. Eukaryotic Contain organelles surrounded by membranes
Most living organisms [LIKE EU AND ME]
Plant
Animal

8. Most Important Part of a Cell
A) Chloroplast
A) Golgi apparatus C C A
B) Vacuole
Winner!!
B) Cell membrane
Endoplasmic
reticulum
A) Cell walls
*Matt and Melissa = cell wall vs flagella
Battle—basketball tourney style/single elimination
-Group assigned one part of a cell  convince class that you have the most important part of the cell by 1) telling us how your part is important or 2) bash your opponent—to win, you have to compete against all the other parts you could face
-vote with clickers
Now that you’ve learned about all the different parts of a cell, let’s use our imagination to create our very own favorite cell… B D D
B) Mitochondria
B) Flagella

9. “Typical” Animal Cell

10. “Typical” Plant Cell

11. Cell Parts
Organelles

12. Surrounding the Cell

13. Plasma Membrane
Outer membrane of cell that controls movement in and out of the cell
Phospholipid bilayer

14. Cell Wall Most commonly found in plant cells & bacteria
Supports & protects cells
In plant cells, it is made of cellulose

15. Inside the Cell

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

17. Nuclear Membrane Surrounds nucleus Made of two layers
Openings allow material to enter and leave nucleus

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

19. Nucleolus Inside nucleus Contains RNA to make ribosomes

20. Cytoplasm
Gel-like mixture
Surrounded by cell membrane

21. Endoplasmic Reticulum
Moves materials around in cell
Smooth type: lacks ribosomes…synthesizes lipids
Rough type (pictured): ribosomes embedded in surface …synthesizes proteins

24. Ribosomes Each cell contains thousands Make proteins
Found on membranes & floating throughout the cell

25. Mitochondria
Produces energy through chemical reactions – breaking down fats & carbohydrates

26. Golgi Bodies Packages and sorts proteins for export from the cell
Move materials within the cell
Move materials out of the cell

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

30. Vacuoles Membrane-bound sacs for storage, digestion, and waste removal
Contains water solution
Help plants maintain shape

31. Chloroplast Usually found in plant cells Contains green chlorophyll
Where photosynthesis takes place

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