1. Cell Structure and Function
Get out paper, pencil, any notes taken from book and class.
Be prepared to take notes!
Today we review and re-teach the parts of the cell. Use this to correct any mis-understanding you have about these parts!

2. Cell Structure and Function

3. KWL - The Cell What do you know? What do you want to know?
What have you learned?

4. Cell
a usually microscopic structure containing nuclear and cytoplasmic material enclosed by a semipermeable membrane and, in plants, a cell wall
the basic structural unit of all organisms.

6. Cell Organelles

7. Organelles Cells contain special parts called organelles.
nucleus
Each organelle has a specific job to do to keep the cell functioning properly, much like an organ in our body does.
This is why they are called organelles.
endoplasmic reticulum
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8. Organelles There are many different types of organelles.
cell
nucleus
Not all the different types are present in all cells.
The types of organelles present in a cell depend on the job the cell does.
endoplasmic reticulum
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9. Animal and Plant Cells
Some organelles are found in both plant and animal cells.
These include:
cell membrane
plant cell
nucleus
animal cell
cytoplasm
endoplasmic reticulum
mitochondria
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10. Plant Cells
Other organelles are present in plant cells but not in animal cells.
These include:
cell wall
plant cell
large central vacuole
chloroplast
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11. Question 1 Which of the following statements about cells is true?
A) All cells in an organism contain the same organelles.
B) Not all living organisms are made up of cells.
C) Plant cells have organelles that are not found in animal cells.
D) Plants and animals contain all the same organelles.
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12. Question 1 Which of the following statements about cells is true?
A) All cells in an organism contain the same organelles.
B) Not all living organisms are made up of cells.
C) Plant cells have organelles that are not found in animal cells.
D) Plants and animals contain all the same organelles.
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13. Cell Membrane

14. Cell Membrane Function: Structure:
Regulates what enters and leaves the cell
Provides protection and support
Structure:
Double membrane
Flexible structure that forms a strong barrier between the cell and its surroundings

15. Cell Membrane Function: Structure:
Regulates what enters and leaves the cell
Provides protection and support
Structure:
Double membrane
Flexible structure that forms a strong barrier between the cell and its surroundings

16. Cell Wall

17. Cell Wall Function: Structure:
Provides support and protection for the cell
Structure:
Lies outside the cell membrane
Found in plants, algae, fungi and many bacteria
NOT FOUND IN ANIMAL CELLS!

18. Cell Wall Function: Structure:
Provides support and protection for the cell
Structure:
Lies outside the cell membrane
Found in plants, algae, fungi and many bacteria
NOT FOUND IN ANIMAL CELLS!

19. Cytoplasm Cytoplasm is a watery substance inside a cell.
Chemicals needed by the cell are dissolved in the cytoplasm.
cytoplasm
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20. Nucleus

21. Nucleus-The control center
Function:
Contains almost all of the cell’s DNA
DNA is found on chromosomes which contain genetic information.

22. Nucleus-The control center
Structure:
Surrounded by a double membrane called a nuclear envelope (Nuclear Membrane). It is dotted with many pores (holes) to allow materials in and out of the nucleus.

23. Nucleus-The control center
Structure:
Surrounded by a double membrane called a nuclear envelope (Nuclear Membrane). It is dotted with many pores (holes) to allow materials in and out of the nucleus.

24. You have 3 minutes to compare your notes with a neighbor
You have 3 minutes to compare your notes with a neighbor. Be sure to ask questions and fill in any blanks you may have in your notes at this time.

25. Vacuoles - Storage

26. Vacuoles - Storage Function: Structure:
Stores water, salts, proteins and carbohydrates
Structure:
Sac-like
Plant cells have one large central vacuole
Animal cells have many small vacuoles

27. Vacuoles - Storage Function: Structure:
Stores water, salts, proteins and carbohydrates
Structure:
Sac-like
Plant cells have one large central vacuole
Animal cells have many small vacuoles

28. Vacuoles - Storage Function: Structure:
Stores water, salts, proteins and carbohydrates
Structure:
Sac-like
Plant cells have one large central vacuole
Animal cells have many small vacuoles

29. Chloroplasts – Energy in Plants
Function:
Captures energy from the sun (solar energy) and changes it into food (chemical energy) for plants (photosynthesis)
Structure:
Contains green pigment called chlorophyll
Not found in animal cells!

30. Mitochondria - Energy Function: Structure:
Convert chemical energy in food into materials easier for the cell to use.
Structure:
Enclosed by two membranes with the inner membrane folded up.
Contains it’s own DNA (unlike other organelles) that is identical to your mother’s!

31. Endoplasmic Reticulum
Endoplasmic reticulum is the transport system of a cell.
endoplasmic
reticulum
endoplasmic reticulum
It takes proteins and lipids (fats) to other parts of the cell.
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32. Endoplasmic Reticulum
Endoplasmic reticulum can be ‘smooth’ or ‘rough’.
endoplasmic
reticulum
Rough endoplasmic reticulum has structures on it called ribosomes that make it look rough.
Ribosomes make the proteins that are carried by the endoplasmic reticulum.
ribosomes
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33. You have 3 minutes to compare your notes with a neighbor
You have 3 minutes to compare your notes with a neighbor. Be sure to ask questions and fill in any blanks you may have in your notes at this time.

34. Sometimes called the cell’s ‘Mailroom’
Golgi Bodies
The Golgi bodies receive materials and other proteins from the endoplasmic reticulum, package them, and send them to other parts of the cell.
Sometimes called the cell’s ‘Mailroom’
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35. Individually, create a Venn Diagram for plant and animal cells.
Plant Cell

36. KWL - The Cell: Your ticket out the door
What do you know?
What do you want to know?
What have you learned?
1. Circle information that you heard in today’s notes
2. Asterik (*) next to questions you had answered today
3. Add new information learned