An EGG-CELLent Lab Activity

An EGG-CELLent Lab Activity
OSMOSIS OSMOSIS & DIFFUSION DIFFUSION EGG EGG LAB LAB
LAB LAB ACTIVITY ACTIVITY QUESTIONS
QUESTIONS
NAME:
1. BEFORE YOU DO ANYTHING ELSE! Carefully drain the vinegar from your cell
cup and cover the cell with cold tap water. You must allow this to set while
you complete this page.
2. BEFORE YOU MAY MOVE ON - Write the BEST definition for the
following words.
YOU MUST COMPLETE THIS SECTION BEFORE YOU ARE ALLOWED
TO MOVE ON! WHEN YOU COMPLETE THIS PAGE, COME TO THE
FRONT TO RECEIVE YOUR STAMP TO MOVE ON.
Diffusion
Hypotonic Solution
Osmosis
Hypertonic Solution
Selective Permeability
Facilitated Diffusion
Plasma Membrane
Active Transport
Membrane Protein
Passive Transport
Isotonic Solution
Concentration Gradient

3. Next, you must collect some data on your cell. Carefully remove your egg from the
water and gently rinse it then dry it.
4. Complete the data table below with the observations you make about your cell and
the cell of FIVE other students in the class.
NOTE – YOU MUST COLLECT DATA FROM A TOTAL OF SIX CELLS. YOUR CELL
WILL BE ONE OF THESE! YOUR DATA MUST INCLUDE:
TWO “#1 STUDENTS”, TWO “#2” STUDENTS, AND TWO “#3” STUDENTS
STUDENT’S NAME NUMBER
GIVEN TO
STUDENT
1. 1
BEFORE
QUANTITATIVE
ORIGINAL
WEIGHT
QUANTITATIVE
ORIGINAL
WIDTH
QUALITATIVE
VISUAL
OBSERVATIONS
2. 1
3. 2
4. 2
5. 3
6. 3
5. Return your cell to the cup. Based on the number you were given at the beginning of
class, you will put your cell in one of the following solutions:
#1 students will cover their cells with Maple Syrup
#2 students will cover their cells with Salt Water
#3 students will cover their cells with plain tap water
6. Based on your knowledge of the plasma membrane and osmosis, make a prediction
about the behavior of each of the cells after it has spent several days in the solution:
Cells placed into the Maple Syrup will:
Because:
Cells placed into the Salt Water will:
Because:
Cells placed into the Tap Water will:
Because:

7. After your cell has spent several days in solution, carefully remove it from the
solution, rinse it off, and dry it. Repeat the observations from step 4.
AFTER
STUDENT’S NAME
NUMBER
GIVEN TO
STUDENT
1. 1
2. 1
3. 2
4. 2
5. 3
6. 3
QUANTITATIVE
FINAL
WEIGHT
QUANTITATIVE
FINAL
WIDTH
QUALITATIVE
FINAL VISUAL
OBSERVATIONS
8. What observations can you make about the eggs that were placed into the syrup
What changes have happened from the beginning
9. Based on these observations, what type of solution would be the BEST description for
the syrup
10. Explain why you believe syrup is the type of solution you selected. Give details
about how your observations support your explanation and the definition of that
solution.

11. What observations can you make about the eggs that were placed into the salt
water What changes have occurred
12. Based on your observations, what type of solution would be the BEST description
for the salt water
13. Explain why you believe salt water is the type of solution you selected. Give details
about how your observations support your explanation and the definition of that
solution.
14. Based on your observations, what type of solution would be the BEST description
for the plain tap water
15. Explain why you believe plain tap water is the type of solution you selected. Give
details about how your observations support your explanation and the definition of
that solution.