Cells: Chapter 3 Online Activities
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Date:
Pd:
Go to www.cellsalive.com. As you travel through this website, you will learn about
imaging techniques, animal cells, plant cells, and will take a little quiz to see how much
you know. Have fun, and good luck!☺
On the left side under Contents, click on the Microscopy link, Click on Enhancing a
Microscope Image
1. What did Antoine van Leeuwenhoek use as microscope lenses to view his
animalcules?
2. Microscopic enhancements have been accomplished by _____________________
______________ or ___________________________________.
3. List three of the inexpensive, yet very effective, optical enhancements that change the
image of a brightfield microscope.
4. Name 3 microscope enhancements used in biological research.
Click on Fluorescence and look at the ‘Endothelial Cell’ picture.
5. ____________ is blue, _____________ is green, ______________is red.
On the left side under Interactive, click on Cell Models, Take me to Animation, then
select Plant Cell.
6. Look at the plant cell and predict the structure represented by each color/shape for the
following. Then click on each and record the correct answer. (No cheating!)
Prediction
Actual

Bumpy yellow folds w/black dots:
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Green ovals:

Small yellow tubes:
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Orange and white ovals:
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Yellow strands:
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Grey structure inside lg purple oval:
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Small lavender balls:
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Pink ring around cell:
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7. Within the nucleus is the __________ responsible for providing the cell with its
unique characteristics.
8. The nucleolus produces ____________, which is critical in protein synthesis.
9. Smooth ER is important in the synthesis of lipids and membrane proteins. T / F
10. Rough ER is important in the synthesis of other lipids. T / F
11. What inside the chloroplasts provide its green color?
12. What process takes place inside the stroma of the chloroplasts?
13. What is the purpose of the cell wall? (circle one)
A) provide the shape of the cells
B) maintain the shape of the cells
C) serve as a protective barrier
D) all of the above
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Click on Animal Cell at the bottom.
14. Look at the animal cell and predict the structure represented by each color/shape for
the following. Then click on each and record the correct answer. (No cheating!)
Prediction
Actual

Small orange spheres:

Small purple spheres:

Yellow tubes:

Small white spheres:

Pink background:

Pink border:
15. Click on the one of the two grey-blue irregular shaped organelles. A _____________
is a membrane-bound sac that plays roles in ___________________ digestion and the
release of cellular waste products, and in plants is the collector of water.
16. How many membranes does a Golgi Apparatus have?
17. The Golgi Apparatus is a stack of membrane-bound vesicles that are important in
packaging micro molecules for transport elsewhere in the cell. T / F
Under Interactive, click on the How Big?, and Start the Animation.
18. What is larger: human hair or a dust mite (circle one)?
19. Use the blue arrows to increase magnification as needed. Order the following
from small to large: Baker’s yeast, Ragweed pollen, Lymphocyte, Red blood cells.
20. Label the structures and their magnification. Again use the blue arrows and increase
magnification as needed.

Green rods: ________________________, _______ micrometers

Smooth Yellow spheres: _____________________, ______ micrometers

Purple spheres: _____________________, ______ micrometers

Pink ovals: ________________________, ______ micrometers

Granite-grey spheres: ________________, ______ nanometers
Go to Galleries and click on Cell Gallery.
22. How many different types of cells are featured here? _____
23. What technique was used to get the images of soil bacteria, red blood cells, and
E. coli? ________________________________
24. Name two cells, featured here, of the immune system that are important in fighting
infection. _______________________ and _______________________
For Fun: Go to Interactive, click on Puzzles, and try one jigsaw puzzle or a word puzzle.
You are now finished with Cells Alive!
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Go to www.classzone.com, Animated Biology, Chapter 3. Click on “Chapter 3:
Cell Structures”. Click on the animal cell.
1. The lysosome is an organelle that contains ______________to “digest” old or broken
cell parts or food.
2. The ___________is the site where ribosomes are assembled.
3. Attached to the nucleus is a network of interconnected membranes, the ___________
_________________________, that help to serve as the cell’s “transportation highway”.
4. The vacuoles in an animal cell store:
5. The ____________________ processes, sorts and delivers proteins.
6. Proteins must be delivered from the _______________reticulum to the
___________apparatus where they are processed, sorted and then delivered. If these two
structures are not connnected, which structure carries the proteins from one to the other?
__________________
Go back and click on the Plant Cell.
7. In the plant cell, how does the central vacuole differ from the other vacuole?
8. In both plant and animal cells, the ________________supply energy to the cell. They
are special because they contain their own _______________(genetic material) and
________________ (protein makers).
9. Which special plant cell part helps a plant “be an autotroph”? ________________
10. A plant cell contains a few different structures an animal cell does not have. List 3
structures and their functions:
a.
b.
c.
11. List one animal cell structure that is not found in plant cells: ________________
Go to Interactive Review, and complete the Ch 3.2 Concept Map
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Go to Assessments, Section Quizzes, Unit 2 Cells, and take the 3.1 and 3.2 quizzes.
12. Quiz Score (number correct) on your first try!
3.1 Quiz:_____/5
3.2 Quiz: ______/5
Go to Animated Biology, Ch 3: Get Through A Cell Membrane. Click Next.
13. Oxygen and water move freely through the cell membrane by this type of passive
transport: ______________________.
14. Cells use energy to release wastes through vesicles in a process called:
____________________________
15. Cells use energy to take in proteins through vesicles by a process called:
____________________________
16. Facilitated diffusion is a type of ________________ transport.
17. Sugars are actively transported through the cell membrane by enegy and proteins
called ___________.
Click on Go and test your knowledge of cell membrane transport. Use the 4 icons to
help transport materials across the membrane. The legend is just for reference only.
18. How many times did you do the animation before you completed it correctly? ___
19. What icon (s) did you need to use when you transported sugar across the membrane?
20. What icon (s) did you need to use to transport ions across the membrane?
21. What icon (s) did you need to use to transport protein across the cell membrane?
Go to Inteactive Review, Ch 3 Vocab Games, and Word Fetch.
22. My difficulty level was _______. It performed with perfection in ____________sec.
Go to Ch 3.5 section quiz and answer the following:
23. What term describes the movement of molecules from an area of low concentration
to an area of high concentration? _____________________________________
24. How does diffusion differ from endocytosis and exocytosis?
25. Through what type of proteins does active transport occur?
26. A type of endocytosis in which the cell takes in large particles, ________________.
27. Is energy required to move oxygen molecules across the cell membrane, from an area
of high concentration to an area of low concentration? Yes / No (circle one).
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