Download Cells Alive - Net Start Class

Cells Alive!
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Go to URL: www.cellsalive.com
On the left hand side menu, under “Contents”, click on Cell Biology
Click on “How big is a….”
Start the animation
Increase the magnification by powers of 10.
a. In this animation, what is the smallest object illustrated? ____________________________________
b. How big is it? ___________________________
c. What is the size relationship between ragweed pollen and Staphylococcus bacteria?
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d. What is the size relationship between lymphocytes (white blood cells) and the Ebola virus?
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6. Click on Cell Biology on the left hand side menu
7. Click on “Cell Models”
a. In your own words distinguish between “eukaryotic” and “prokaryotic” _______________________
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8. Click on “Plant Cell”
9. Click on each cell organelle in the plant cell
a. What is the most prominent structure of the nucleus? ______________________________________
b. Where do materials, made by the rough ER, go next? ______________________________________
c. What is the difference between plant and animal cell centrosomes? ___________________________
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d. What is the primary importance of the cytoskeleton? ______________________________________
e. What do the mitochondria and nucleus have in common? __________________________________
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f. What is necrosis? ___________________________________________________________________
g. What makes the cell membrane complex? _______________________________________________
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h. What organisms possess a cell wall? ____________________________________________________
i. Where, in the chloroplast does photosynthesis take place? ___________________________________
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10. Click on Cell Biology on the left hand side menu
11. Click on “Cell Models”
12. Click on “Animal Cell”
13. Pass the cursor over each organelle in the animal cell picture
a. What is the large, purple, structure in the center of the cell? _________________________________
b. What are the long, thin, orange structures? _______________________________________________
c. What are the small, round, purple structures? _____________________________________________
d. What are the round, gray structures? ___________________________________________________
e. What are the thin, gray, stringy structures? ______________________________________________
14. Click on Cell Biology on the left hand side menu
15. Click on “Cell Models”
16. Click on “Bacterial Cell”
a. Generally, how do bacterial cells compare to plant and animal cells? __________________________
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b. What structure(s) do bacterial cells posses that plant and animal cells do not? ___________________
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