Transcript Cell City Analogy

7th
Grade Science
INTRODUCTION
• Cities and cells, what do these two
things have in common? There is a
lot more than you may first think.
How are plant cells different from
animal cells? How do materials move
in and out of a cell? In this web
quest, you will be finding the
answers to these questions.
•
Cities are busy places with each building
specializing in a particular service or activity.
Each building provides services that are
necessary for the city's continued existence.
Cells are no different. Each part of a cell, like
each building in a city, specializes in an activity
or service that benefits the cell and organism
as a whole.
You are a city planner. You must make sure
that the "cell city" that you build has all of the
parts, goods and services necessary for the
"cell city's" survival.
• Be sure to use the talents of everyone in your
group. At the end of the web quest, you will
build your own cell. Be sure to look at the
Evaluation page. At the end of the unit, you
will be evaluating yourself as well as the other
group members. I will be filling out one of the
rubrics for you as a grade. I will take into
consideration what your team mates have to
say. Look at the rubric now so you know what
you are being graded on.
• Questions - These questions tell you what you
will learn. - You will have to answer these
questions at the end of Task 4.
1. Describe the structures and functions of the
organelles in a cell.
2. Compare and contrast plant and animal
cells.
3. Describe and discuss how a cell maintains
homeostasis.
CELL CITY WEBQUEST
TASK ONE
Instructions for Task 1
1. Create a chart that is 5 columns across the
top and 13 rows down the side.
The five columns across the top are:
CELL PART
DESCRIPTION
FUNCTION
PLANT/ANIMAL/BOTH
REPRESENTIVE CITY BUILDING
The 13 rows down the side of the paper are:
CYTOPLASM
MITOCHONDRION
NUCLEUS
VACUOLE
NUCLEOLUS
LYSOSOME
CHROMOSOMES
CHLOROPLAST
ENDOPLASMIC RETICULUM GOLGI COMPLEX
RIBOSOMES
CELL WALL
CELL MEMBRANE
2. Divide the organelles among the members of
your group.
3. Using the websites on the resource page,
research your organelles and fill in the chart.
4. When you are finished, return to your group
and exchange research information. When
everyone has completed a chart, move on to
Task 2.
RESOURCE PAGE
Go to http://www.portaportal.com/
Key in as my guest (wendybramlett) all one
word
Go to the Cell Web Quest category
Click on any resource found in that category.
CELL WEBQUEST
TASK 2
Instructions for Task 2
1. Using the chart that you made in Task 1, on
an index card, you will draw, label and color
the 13 organelles. Assign each group
member a few of the organelles to complete.
2. Return to your group and sort the organelles
into three piles: Plant Cell Parts, Animal Cell
Parts, and the parts that appear in both types
of cells.
3. Draw a large Double Bubble Mind Map on
bulletin board paper. Label one center circle
“Plant Cell”, the other center circle “Animal
Cell” and the center bubbles “Both”.
4. Glue the completed index cards to the
Double Bubble Mind Map in the correct
places.
Instructions for Task 3
In this task, you have a few choices. Each
activity on the Task 3 activity sheet, has been
assigned a specific number of points. You
may choose any of the activities, as long as
the points add up to a total of 50.
CELL CITY WEBQUEST
Task 4
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?
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.
Let’s compare!
•
Cell Part
A.
B.
C.
D.
E.
F.
G.
Cell
Cell Membrane
Cytoplasm
Nucleus
Nuclear Membrane
Ribosomes
Endoplasmic
Reticulum
H. Golgi Bodies
I. Mitochondria
J. Lysosomes
•
City Analogy
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
City
City Limits
Environment
City Hall
Police Force
Factories & Workers
Highway or Roads
Post Office or UPS
Power Plant
Recycling Plant
or Waste Management
We are going to label your parts of a cell page together
B.
A. Cell = City
G.
C.
H.
D.
I.
E.
F.
J.
Create a City Cell Analogy
• You can use a city or any other place
(amusement park, country, the mall).
Can be a fictional place.
• Steps of the Project:
– Step 1: Brainstorm on the cell parts and what
you can draw to represent each part. Use the
Parts of a Cell Page to help you.
– Step 2: Draw a picture of your city. Label
each “cell” part of the city with a letter A
through J.
– Step 3: Create a legend or map key in the
corner and explain what A – J represent. Ex:
D = Town Hall
– Step 4: On a separate piece of paper, in
complete sentences, write your analogies.
This will explain why you selected each part
of your city to represent the part of the cell
and what function they both share.
Think of the place you want to draw. Be
creative. Create an analogy for each cell part.
Write your ideas on your Parts of a Cell page.
• A. Cell = City
• B. Cell Membrane =
City limits
• C. Cytoplasm =
Environment
• D. Nucleus = Town Hall
• E. Nuclear Membrane
= Police
• F. Ribosomes = Factory
• G. Endoplasmic
Reticulum = Roads
• H. Golgi Bodies = Post
Office
• I. Mitochondria = Power
Plant
• J. Lysosomes = Recycling
Plant
Create your map and legend.
• Draw your city. Pencil first, then crayons or colored
pencils. No markers.
• Label each part on your city A – J. Circle the letter.
• Create a map legend or key in the corner of your
map which lists the letters A-J and identifies the
name of each place.
– Example. A= Far Far Away;
B=city limits
A
I
C
D
G
B
H
J
E
F
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
Explain why you chose the items to
represent each cell part.
• List the letters A-J
• For each letter:
– State the name of the city place
– The name of the cell part it corresponds to
– Why you selected that item to represent the cell
part
• Must be in complete sentences.
– Example: B: The town hall represents the
nucleus because its function is to control the
town’s activities
On notebook paper.
Final Product:
• Your analogies must be in complete sentences and
stapled/glued to the back of your map.
• Your map/picture must be neat, colorful, correctly
labeled, and have a legend or key.
• Use pencil first then color.
• Be creative! Have fun with it.
• Past examples included underwater cities,
prehistoric cities, a skate park, amusement parks,
etc…
Cell Part
City Analogy
Purpose
City
Area with fixed
boundary
City Limits
Surrounds & border
Environment
Inner space
City Hall
Controls the activities
Police Force
Protects
F. Ribosomes
Factory & Workers
Makes products
G. Endoplasmic
Reticulum
Roads or Highways
Transportation system
H. Golgi Bodies
Post Office or UPS
Packs & carries
I. Mitochondria
Power Plant
Provides power
J. Lysosomes
Recycling Plant or
Waste Management
Recycle & waste
disposal
A. Cell
B. Cell Membrane
C. Cytoplasm
D. Nucleus
E. Nuclear Membrane