1. AIM: What is a cell and what are its parts?
DO NOW: Write down 5 things (concepts) that identifies if something is living or non living.
AIM: What is a cell and what are its parts?

2. Living, Non-living or Dead?

3. Living, Non-living or Dead?

4. Living, Non-living or Dead?

5. Living, Non-living or Dead?

6. Living, Non-living or Dead?

7. Living, Non-living or dead

8. Living, Non-living or Dead?

9. Living, Non-living or Dead?

10. Living, Non-living or Dead?

11. Living, Non-living or Dead?

12. Living, Non-living or Dead?

13. 1) What is life?
In Biology, life is defined not by what it IS, but by what it DOES.
We call something that is alive an organism.
There are 8 things that living things do that separate them from non-living things.
These 8 things are called life functions.

14. 2) What are the 8 life functions?
Nutrition- the ability to obtain and digest food
Respiration- the ability to convert food (organic molecules) into energy.
Synthesis- the ability to make molecules that the organism cannot get from the environment.
Growth- the ability to increase in size
Transport- the ability to move materials into, out of and throughout an organism.

15. What are the 8 life functions? (cont.)
Excretion- the ability to remove waste products made by cells.
Regulation- the ability to maintain homeostasis.
- Homeostasis- a stable internal environment in a changing external environment.
Reproduction- the ability of an organism to produce more of its own kind
Not needed for the individual organism to survive, but needed for the species to survive.

16. BIOLOGY 3) What is the smallest unit of life?
Because the cell can perform all of the 8 life processes, it is considered the smallest unit of life.
Mr. Harrigan

17. 4) Do you need cells in order to be alive?
BIOLOGY
4) Do you need cells in order to be alive?
All organism, big or small, must contain at least one cell.
With out these cells, we could not perform any of the 8 life functions.
Mr. Harrigan

18. 5) The Cell Theory There are 3 rules in the cell theory:
BIOLOGY
5) The Cell Theory
There are 3 rules in the cell theory:
Every organism is made up of one or more cells.
The cell is the basic unit of structure and function in all living things.
All cells come from pre-existing (old) cells.
Mr. Harrigan

19. 6) Are there different groups of cells?
BIOLOGY
6) Are there different groups of cells?
Cells can be grouped into two categories:
- Prokaryote: these are cells that do
not have a nucleus.
Example: Bacteria
- Eukaryote: these cells have a
distinct nucleus.
Mr. Harrigan

20. BIOLOGY
Prokaryote Cell
Eukaryote Cell No
Nucleus
Nucleus
Mr. Harrigan

21. 7) What are the types of Eukaryote cells?
BIOLOGY
7) What are the types of Eukaryote cells?
Eukaryotic cells fall into two categories:
a) Plant Cells
b) Animal Cells
Mr. Harrigan

22. 8) What are the parts of the cell that you can see under a microscope?
BIOLOGY
8) What are the parts of the cell that you can see under a microscope?
The cell is made up of many different parts. Each part does a specific job. The parts work together allowing the cell to survive. These parts are called organelles.
Organelles are specialized parts of the cell that perform a specific job.
Mr. Harrigan

23. 9) Cell Membrane The cell membrane: FUNCTION:
BIOLOGY
9) Cell Membrane
The cell membrane:
FUNCTION:
surrounds and protects the cell
controls what goes in and out (the bouncer)
STRUCTURE:
- is made of a double-lipid layer
Mr. Harrigan

24. 10) Nucleus The nucleus: FUNCTION:
Controls all of the activities of the cell (the control center)
STRUCTURE:
- enclosed by its own membrane and contains the cell’s DNA

25. 11) Cytoplasm The cytoplasm: FUNCTION:
is where the cell’s chemical reactions take place
It’s the transport system of the cell
STRUCTURE:
- as a fluid-like material consistently mainly of water

26. 13) Chloroplasts NONE The chloroplasts: FUNCTION:
are the place where photosynthesis takes place
STRUCTURE:
- Contain pigments that give the plant color (green)
NONE

27. Anacharis cell (plant cell)
cytoplasm
chloroplasts
Cell wall

28. Anacharis cell (plant cell)

29. Human cheek cell (animal cell)
cytoplasm
nucleus
Cell membrane

30. Place a check (√) in the box if the cell has that structure.
Animal cell
Plant cell
Cell membrane √
nucleus
Cell wall
Cytoplasm
Chloroplast