1. Parts of a Cell

2. Defining Life
Homeostasis: Regulation of the internal environment to maintain a constant state; for example, sweating to reduce temperature.
Organization: Being composed of one or more cells, which are the basic units of life.
Metabolism: Consumption of energy
Growth: A growing organism increases in size in all of its parts, rather than simply accumulating matter.
Adaptation: The ability to change over a period of time in response to the environment
Reproduction: The ability to produce new organisms.

3. What are cells? An organism is made of organ systems.
Organ systems are made up of organs
Organs are made up of tissues
Tissues are made up of CELLS!
Organ System
Organ
Tissue
Brainpop: Cells & Cell Structures
Cells!!!!

4. The Cell Theory All living things are made of cells.
Cells are the basic units of structure and function in living things.
Living cells come only from other living cells.

5. What technology was created that allowed cells to be discovered?
Hint: you could not SEE a cell without this piece of equipment.
MICROSCOPE

6. Cells Cells are made up of organelles.
Organelles are like tiny organs.
Each organelle has a job to do (or a specific function) just like our organs.
The organelles work together to keep the cell alive and healthy.

7. Plant Cell
Animal Cell

8. Cell Membrane
A continuous, almost invisible structure surrounding the cell
Supports & protects the cell
Controls movement of materials in and out of the cell

9. Cytoplasm
The cell’s environment or inner space. Mostly made of water and contains organelles
The jellylike material outside the cell nucleus.

10. Nucleus
The cell’s computer, brain, or manager. Uses DNA to control the cell’s activity
Contains all the information the cell needs to do specific jobs, grow, and divide
Information is stored in DNA molecules
Contains the nucleolus which makes ribosomes
Determines what proteins will be made

11. Nuclear Membrane
Protects and guards the nucleus. Allows materials to pass in and out.
Keeps the DNA inside the nucleus
Allows other materials to pass in and out of the nucleus

12. Ribosomes Produces protein which is the Product of the cell
Cells need protein to survive and grow
Protein

13. Endoplasmic Reticulum (E.R.)
Transportation system of the cell. Carries material through the cell.
Rough ER has ribosomes attached to it so the proteins they make can be released directly into the ER for transport
Smooth ER collects things and contains them

14. Golgi Bodies
Packs
Packs and carries proteins in little bubbles that separate and float into the cytoplasm.
Prepares the proteins for use or delivery outside the cell

15. Mitochondria
Powerhouse of the cell. Supplies energy that the cell needs.
Breaks down sugar molecules into energy
Need oxygen to make energy and give off carbon dioxide as waste

16. Lysosomes
Cell’s recycler. Breaks down large food and digests old cell parts.
Contains enzymes which break down the proteins

17. Vacuoles Storage bubbles found in cells.
Much larger in plant cells. Store food or nutrients a cell might need to survive.
Store waste products so the rest of the cell is protected from contamination.

18. The Difference between Animal & Plant Cells

19. Cell Wall Plant cells only
Gives plants their shape, structure, support, and protection
Surrounds the cell membrane
Allows H2O, O2, and CO2, to pass in and out of the cell

20. Chloroplasts Plant cells only
Uses energy from the sun to make food for the plant through photosynthesis
Where photosynthesis takes place
Power generator for the plant
Give plants their green color

21. Can you remember the function of each?
Protein
Cut out the symbols and glue them next to the correct cell part.

22. Surrounds and protects the plant cell Cell Membrane
Organelles
Cell Functions
Plant
Animal
Picture
Cell Wall
Surrounds and protects the plant cell
Cell Membrane
Lets things in and out of the animal cell
Chloroplasts
Site of photosynthesis
Cytoplasm
The cell’s environment
Mitochondria
Provides energy
Nucleus
Controls the cell
Lysosome
Cell’s recycler
Ribosome
Produces protein
Vacuole
Stores waste
Golgi Body
Packs and carries items
Endoplasmic Reticulum
Cell’s transportation system
Nuclear Membrane
Protects the nucleus

24. Think of a City How does it operate? Who protects the city?
Who runs the city?
How does the city manage its trash?
How does the city get food?
How does the city get its power?
How do you know when you are in the city limits?

25. Now think of a Cell What cell parts do you remember from Friday?
Do the parts of the cell compare to any parts of a city?
How many can you relate to the parts of a city?
Cell Nucleus?
Mitochondria??

26. A cell can be compared to a city!
Each part of the cell has its own function or purpose.
The parts of the cell can be compared to the parts of a city based on their similar purpose.

27. Cell City Analogies
An analogy is a similarity between like features of two things, on which a comparison may be based.
Endoplasmic
Reticulum
The road represents the endoplasmic reticulum because they are both transportation systems

28. Cell Part City Analogy Purpose
A. Cell
City
Area with fixed boundary
B. Cell Membrane
City Limits
Surrounds & border
C. Cytoplasm
Environment
Inner space
D. Nucleus
City Hall
Controls the activities
E. Nuclear Membrane
Police Force
Protects
F. Ribosomes
Farm or Factory
Makes products
G. Endoplasmic Reticulum
Roads or Highways
Transportation system
H. Golgi Bodies
Post Office or UPS
Packs & carries
I. Mitochondria
Power Plant or solar panels or windmills
Provides power
J. Lysosomes
Recycling Plant or Waste Management
Recycle & waste disposal
K. Vacuole
Storage Facility – boxes, crates, and plastic bags
Stores food and waste
L. Chloroplast
Green grass within the city
Where photosynthesis takes place
M. Cell Wall
Brick wall surrounding city
Gives shape, structure, support, and protection
is like
because

29. Creating your own Cell = City
You are going to create your own real or imaginary city.
Each part of your city will correspond to a part of the cell.
Look at your worksheet from yesterday.
You must include all the parts needed for your cell
13 parts for plant cell

30. Sketch your city in pencil on large computer paper.
Label and circle each part of the city
A-M for plant cell
Create a legend in the corner of your city.
Color your city completely and neatly

31. A B C

33. A I C D G B H E J
Legend A: Far Far Away B: Brick Wall C: Environment D: Shrek’s Castle E: Puss-n-boots Security Service F: Gingerbread Man’s Cookie Factory G: Roads H: 3 Blind Mice Delivery Service I: Dragon Power Service (DPS) J: Donkey Recycling F

34. Final Product
Your map/picture must be neat, colorful, correctly labeled, and have a legend or key.
Use pencil first then color (no markers).
Be creative! Have fun with it.
Past examples included
underwater cities, prehistoric cities, skate parks, amusement parks
12 parts for plant cell

35. Plant Cell City Cell Lysosome Cell Wall Ribosome Cell Membrane Vacuole
Cytoplasm
Golgi body
Chloroplast
Endoplasmic reticulum
Nuclear membrane
Mitochondria
Nucleus