Download Use Your Own Paper - Phillips Scientific Methods

Cells Webquest
Purpose:
1)
2)
3)
4)
Name__________________________ # _____
In this activity you will:
Understand the function of various organelles.
Consider prokaryotic and eukaryotic cells.
Differentiate between plant and animal cells.
Examine cells in hyper, hypo and isotonic solutions.
Directions: You have half of the block to complete this computer assignment. Be sure
to pace yourself and visit only the sites I have given you.
Part I: Function of cellular organelles. (This section should take you no more than 20-25
minutes)
Directions - Go to http://cellsalive.com/ and look on the screen where it says Contents…
and click on Cell Biology. Next, click on Cell Models under the table of contents. Use
this page to answer the following questions.
1) Explain the difference between prokaryotic and eukaryotic cells.
2) Click on – Animal Cell. Run the mouse over organelles in the animal cell to view
it’s location in the cell. Click on the organelles to answer the following questions.
2a.) This organelle is responsible for packaging molecules and transporting
them elsewhere in the cell._________________________
2b.) The nucleolus is responsible for producing these organelles.
_______________________
2c.) In this organelle, sugar (food) is combined with oxygen to produce ATP –
the primary source of energy for the cell. ____________________________
2d.) Click on the cell membrane. Explain how the phospholipids help protect
the cell from water.
_______________________________________________________________
_______________________________________________________________
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2e.) Click on the ribosome. Why are the ribosomes so important to the cell?
_______________________________________________________________
______________________________________________________________
Would organisms survive if there were no ribosomes? Why is this?
_______________________________________________________________
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3) For the next set of questions you want to look at the plant cell.
3a.) Click on cell wall. Explain why the cell wall is important to plants.
3b.) What is the role of the vacuole in the plant cell?
3c.) What is the pigment responsible for the plant’s green color? In what
organelle is this found?
3d.) What organelles are found in the plant cell but not in the animal cell?
Part II: Puzzles (This section should take you no more than 10-15 minutes.)
Directions – Look on the computer screen where it says Interactive. Under that section
you will find Puzzles; click on it.
1) Omit the plant and animal cell jigsaw puzzles.
2) Choose either Cell Structure Puzzle #1 or Puzzle #2. Complete the puzzle and
have me to come over and check it from screen. If doing at home, print it out.
Make sure you put your name on it and staple it to the answers from the above
questions.
We may be completing Part III later. ASK ME!
Part III: Go to the following website to answer the questions below. (This section
should take you no more than 10-15 minutes.)
http://www.biologyjunction.com/tonicity%20animations.htm
The following are asked regarding each animation on the website:
Animation #1:
What is the tonicity of this solution?
What happens to the cell?
What is this called?
Animation #2:
What is the tonicity of this solution?
What happens to the cell?
What is this called?
Animation #3:
What is the tonicity of this solution?
What happens to the cell?
What is this called?
ANSWER THE FOLLOWING:
1) What is the main difference between osmosis and diffusion?
2) What is a hypertonic solution? What happens when a cell is placed in a
hypertonic solution?
3) What is a hypotonic solution? What happens when a cell is placed in a hypotonic
solution?
4) What is an isotonic solution? What happens when a cell is placed in a isotonic
solution?