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DO NOW Monday 10/17
Considering the benchmark scales, try to fill
in the blanks.
Large Scale: Body of an adult cow
Macroscopic Scale: Liver
Microscopic Scale:
Atomic Molecular Scale:
Happy Monday!
• Pre-assessment: Cell Structure and Function
– What do you already know? Impress me with your memory!
– Need a hint? Who has them, what are they, where are they
found, when are they made, what is their purpose?
• A really cool video
– What were some ideas about cells from the video that
confirmed what you know about cells?
– What is something new that you took away from watching this
video?
– What was the most surprising part about the video you just
watched?
• The Cell Coloring Diagram: Structures and Analysis
DO NOW Tuesday 10/18
List 5 organelles or cell structures from your
coloring sheet. Try to do this from memory first and then if
you need, refer back to your sheet.
*Get out your coloring sheet for completion stamps
Happy Tuesday!
• Log onto the computer at the lab station
• Open an internet browser (Chrome or Internet Explorer)
• Search for “SEPUP Cell Simulation” and click on the first result
• OR type in the web address for the cell simulation
http://sepuplhs.org/high/sgi/teachers/cell_sim.html
• Using the cell simulation, build a plant and animal cell and use that
information to complete the table for Part A.
•
•
Be sure to click on each organelle or cell structure once you have
placed it in your cell to receive a more detailed explanation of what it does
(this will help you when completing the table).
After completing the table in Part A, use that information to complete Parts B
and C (back of the worksheet)
Assigned: Cell Structure and Function Worksheet, if not completed during class, due
beginning of class Wednesday (10/19)
• Select an organelle, cell structure, or cell function
 You must receive approval from the teacher before beginning work on your presentation.
First-come-first-served basis.
•
You will be creating a 90 second “commercial” for your organelle, structure, or function
• Your group’s presentation must include the following:
• Name of the organelle, cell structure, or cell function
• Detailed description of what it does for the cell and why it is
important to the organism as a whole
• Selling point telling us why your organelle/structure or function is
THE most important!
– (Get creative! Really try to sell the class on why they should vote for your
organelle, structure, or function)
• (Optional) A disease, disorder, or condition related to your
organelle, cell structure, or cell function (include a brief description:
make sure the connection is clear)
Happy Wednesday!
• No DO NOW Write: Organelle/Structure
Commercials
• Sit near your group members
• You will have 5 minutes to meet with your group and
practice your 90 second (maximum) commercial
– You may use notes during your presentation
• During the commercial break, be sure to make note of
which 2 organelle or cell structure commercials you liked
best!
*Turn Cell Structure and Function Worksheet into the green box
before you leave class today
• Your group’s presentation must include the following:
•
•
•
•
Name of the organelle, cell structure, or cell function
Detailed description of importance to cell and whole organism
Selling point
A disease, disorder, or condition (Optional)
Let your voice be heard! Submit your
ballot to the green box before you leave!
Be sure to submit the Cell Structure and Function Worksheet before you leave
class today
DO NOW Thursday 10/20
Briefly explain the main function for the
following organelles or cell structures:
Cell Wall:
Cell Membrane:
Nucleus:
Components of the
Cell System
Structures and their Functions
1. Cell Membrane

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

Outside boundary of cell
Double layer of FAT molecules
(“phospholipid bilayer”)
Proteins embedded within;
have different functions
Protects cell and regulates
what enters and exits
Does form seem to fit function?
2. Cell Wall


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Plants, some fungi,
some bacteria, some
protists have this
Outside of membrane
Provides structure
Made of carbohydrates
(mainly cellulose, which
we know as fiber)
Does form seem to fit
function?
Holds DNA and
controls the cells
activities.
 Does form seem to
fit function?

3. Nucleus

Pores in the nuclear
membrane control
flow of materials in
and out.
3.5 Nucleolus

Region within the
nucleus where
ribosomes are
formed
4. Cytoplasm


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Present in all cells
Jelly-like mixture of water,
proteins, salt and sugar
AND organelles.
Does form seem to fit
function?
The Organelles
Smaller, specialized
compartments within a
cell

5. Mitochondria

Where energy stored in
food is converted for use
in the cell
Number of mitochondria
in a cell depends on the
purpose of the cell
Muscle cells 
 Skin cells 
Does form seem to fit
function? Many reactions
happen at the inner
membrane.


Tagged/dyed mitochondria in a cell
Tagged/dyed microtubules in a cell

6. Chloroplasts


Chlorophyll - green
pigment that allows
photosynthesis
Inside, contains flattened
sacs “thylakoids”, where
photosynthesis occurs
Only in plants… though bluegreen pigment like chlorophyll
found in some bacteria

Photosynthesis reactions
happen at the inner
membrane. Does form fit
function?
7. Ribosomes: Not compartments!


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
No membrane
Composed of two
subunits
Protein structures
where more proteins
are made
The most abundant of
all cell parts
Do characteristics seem to
fit function?
8. Endoplasmic Reticulum

A large network of
membranes that acts like a
highway to allow
molecules to move
throughout cell
Vesicles break off ER to
transmit substances
around cell
Two types…

Does form seem to fit function?


8a. Rough Endoplasmic
Reticulum
 Studded
with
ribosomes!
 Processes
proteins to export
from the cell
8b. Smooth Endoplasmic
Reticulum
 No
ribosomes!
 Makes lipids
(fats and
steroids)
 Detoxification in
liver cells
9. Golgi Bodies/Apparatus




System of flattened sacs
called cisternae
Works with the RER to
modify, package and
release proteins
Spawns vesicles to
transport materials to the
cell membrane
Does location seem to fit
function?
10. Vacuoles
In plant cells: large
and used for water +
nutrient storage
 In animal cells: small
and numerous and
contain a variety of
substances
 Does form seem to fit
function?

11. Lysosomes


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

Small, abundant sacs
Contain chemicals for
digesting waste,
toxins, or useless
organelles
Formed from Golgi
Common in animal
and fungus cells
Why do fungal and
animal cells tend to have
more lysosomes?
How do we know
all of this?
The Cell Theory, developed in 1839
The microscope opened a world of discovery of life
never seen before. By 1839, scientists Matthias
Schleiden, Theodor Schwann and Rudolf Virchow
concluded the following as the….
The Cell Theory
1. All living things are made of cells.
2. Cells are the basic unit of structure
and function in living things.
3. All cells come from other cells.
DO NOW Friday 10/21
Which of the cell parts is associated
with the production of protein?
Happy Friday!
• Today you will be viewing different types of cells
at the microscopic level.
– Select 3 of the 5 different cells available and view them under a
microscope.
– Draw a picture in the space provided of what you see at 4X, 10X,
and 40X magnification
Do’s and Don’ts of Compound Microscopes
HOW TO HANDLE A MICROSCOPE:
A compound microscope should be treated as a VERY, VERY, VERY fragile piece
of equipment.
1. Adjustments should be made gently and with finesse.
2. ALWAYS use both hands when picking the microscope up and moving it
from one place to another. Do not drag it or push it on the countertop.
3. When focusing on a slide, ALWAYS start with the 4X red objective lens.
Once you have the object in focus, then switch to the next higher
power objective (10X yellow). Re-focus on the image and then switch to
the next highest power (40X blue). NEVER advance more than one
objective before focusing.
4. Use ONLY the fine focus control when focusing the higher power objectives
(40X) on a slide. The coarse focus control is too coarse for focusing
with these objectives. Objectives are fragile and must not be rammed
into slides. Be gentle!
Check yo’self!
(Is this what you saw?)
Adipose (Fat) Cells
Red Blood Cells
Muscle Cells
Plant (onion root) Cells
Cheek Cells
Different Types of Cells
Today you looked at (at least) 3 types of cells. All of these cells were dead. However, most
cells in your body are living and very busy.
In your notebook, answer the following questions:
1. What do you think is going on inside of living cells?
2. What do they need to do that?
Compare the following types of cells (not all cells look exactly the same! Note-they are not all magnified to the
same scale, so even though they look like they are different sizes, it is impossible to tell from these pictures)
Intestinal cell
Muscle cell
Red blood cells
Nerve cell (neuron)
3. What differences do you notice?
4. List any reasons why you think the structure is the way it is for
each cell type.
Complete the exit ticket and submit to
green box before you leave!
Enjoy the weekend! 