Download Cell Webquest Task 3 Activities 1. Graphic Organizer (10 points

Cell Webquest Task 3 Activities
1. Graphic Organizer (10 points)
Using the organelles that you have been studying, create a graphic organizer that shows the cell parts,
their descriptions and functions.
2. Questions - 20 points
Copy and answer the following questions in complete sentences.
1. Describe the difference between prokaryotic and eukaryotic cells.
2. What is the difference between a cell wall and cell membrane?
3. Why do plants need cells with cell walls?
4. Every cell needs a membrane. Why?
5. What would be the negative effects of a cell not having lysosomes?
6. Predict whether skin cells or muscle cells have more mitochondria. Explain how you arrived at your
prediction.
7. Why are digestive enzymes in a cell enclosed in a membrane-bound organelle?
8. If you were given a slide containing living cells, how would you identify the cells as either plant or
animal cells?
9. What would happen if the nucleus of a cell were damaged?
10. What are the benefits of being multicellular?
3. Science Fiction Story - 20 points
Write a science fiction story about an animal whose cells are invaded by chloroplasts. Describe how that
animal's life processes would be affected and how that animal would use this unusual occurrence to its
advantage. You may use any multicellular animal that you like.
4. Cell Mathematics - 15 points
Rewrite each statement, filling in the answers to make the statements correct.
1. A hen's egg is about 50 mm in diameter. A human egg is about 0. 14 mm in diameter. What is the
difference in size between the hen's egg and the human egg? _____________________mm
2. A drop of blood contains five million red blood cells and ten thousand white blood cells. How many
TIMES more red blood cells are there than white blood cells? _________________ times
3. The nucleus of a cell is about 0.000625 cm in diameter. What is the diameter of this nucleus expressed
in millimeters? _____________mm
4. A biologist notices that a petri dish is becoming covered with colonies of bacteria. The doubling rate of
the bacterial colonies is one day. At the end of 30 days, the plate is covered with bacteria. When was the
petri plate half-covered with bacterial colonies? _______________ day
5. A single cell reproduces by mitosis (reproduction by splitting in half). How many cells will be present at
the end of the first division? __________________ At the end of the second division? __________ At the
end of the fifth division? _____________ At the end of the tenth division ? _________________ At the
end of the twentieth division? __________________
5. Modeling Cytoplasm Mini Lab - 15 points
Write out the directions for the lab and complete it. Bring in your cytoplasm to class and the correctly
answered questions.
Materials
water measuring cup
unflavored gelatin spoon
Procedure
1. add 100 mL of water to a clear container (approx. 1/2 cup)
2. add unflavored gelatin and stir
3. shine a flashlight through the solution
Analysis
1. Describe in detail what you see.
2. How does a model help you understand what cytoplasm might be like?
6. Observing Magnified Objects Mini Lab - 15 points
Materials
clear drinking glass
clear glass bowl
magnifying glass
water
newspaper
Procedure
1. Look at newspaper through the curved side (turn the glass on its side) and the flat bottom of an
empty, clear glass.
2. Look at the newspaper through a clear glass bowl filled with water.
3. Look at the newspaper with a magnifying glass.
Analysis
1. List each of the 4 ways you viewed the newspaper and describe in detail what the newspaper looked
like.
2. Which worked best? Why?
3. How do you think that this experiment shows the concept of invention?
4. Based on the information in this lab, write a paragraph on how you think magnifying glasses were
invented
7. Identify the Cell Structures - 10 points
Read and copy the short poems below. Answer the question "What am I?" at the end of each poem.
1.I'm a real "powerhouse."
That's plain to see.
I break down food
To release energy.
5. Found only in plant cells
I’m green as can be
I make food for the plant
Using the sun’s energy
9. I’ve been called a storage tank
By those with little taste
I’m a sac filled with water
Food, enzymes or wastes
2. I'm strong and stiff
Getting through me is tough.
I'm found only in plants,
But I guess that's enough.
3. My name means "colored bodies,"
And I contain DNA
I pass on traits to new cells
In a systematic way.
6. I’m a series of tubes
10. Since I contain many enzymes
Found throughout the cell
I can digest an injured cell;
I transport proteins
And can break down a large
And other things as well
molecule
Into a smaller one as well
7. I’m full of holes
Flexible and thin
I control what gets out
As well as what comes in
4. I'm the "brain" of the cell
Or so they say.
I regulate activities
From day to day.
8. Proteins are made here
Even though I’m quite small
You can find me in the cytoplasm
Or attached to E.R.’s wall