Transcript Naked Egg Lab Day 2

Bellwork 10-10-2013
1. Compare and contrast mitochondria and chloroplasts.
2. You discover a new cell with a cell wall of a weird
material called peptidoglycan which is part protein and part
carbohydrate. The cell has no nucleus. The only organelles
it has are ribosomes, cytoplasm, cell membrane. What type
of cell is it?
3. Please describe the function of the cell wall and explain
which types of cells it can be found in.
4. Please describe the lysosome and explain which types of
cells it can be found in.
UstreamPlantWalls
Mahalo Lysosome
Cell Analogy
The purpose of this project is to compare the cell
parts with some familiar theme which reflects the
functions of each cell part.
For example:
A USA cell analogy would have Washington, D.C.,
as the nucleus because it directs activities of the
USA, just as the nucleus directs cell activities
the borders of the country as the cell membrane
because it limits the coming and going of
people/products into and out of the US
Quality
Point Value
Title
5
Key
10
Cell Functions correctly Identified
18
Mitochondria
5
Ribosomes
5
Nucleus
5
Endoplasmic Reticulum
5
Golgi Apparatus
5
Protein
5
Cell Membrane
5
Lysosomes
5
Nucleolus
5
Neatness
10
Color
5
Appropriate size
7
Bonus: Turned in early or above & beyond
+10
TOTAL
Value Received
Naked Egg Lab Day 2
You are now going to have the chance to place your egg
in one of the solutions listed on next page.
1. Collect all equipment
2. Make observations of your egg and answer the
following questions:
Why do you think the eggs were upside down in the vinegar on
Monday?
What happened to the Shell?
The inner membrane of the egg is like what? (reference the cell)
Procedure
1. Pour vinegar into the sink
2. Gently rinse egg (turn on faucet before you place your egg
under it.)
3. Mass cup and egg together and record
4. Calculate the mass of egg record in journal
5. Fill the cup a quarter of the way with the solution (water,
molasses, or kayro syrup)
6. Write a hypothesis about what you think the egg will look
like tomorrow
7. Draw a picture of what your cup and egg looks like
Naked egg lab in Journal
Answer following Questions:
1. Why do you think the eggs were upside down in the vinegar
on Monday?
2. What happened to the Shell?
3. The inner membrane of the egg is like what? (reference the
cell)
Mass of Cup and egg ____________
Mass of egg (calculated)___________
Hypothesis (what will your egg look like Monday)
Draw a Diagram of your Egg in the cup
Exit Ticket
1.
Please describe the centrioles and explain which
type of cells they can be found in.
2. Describe the cytoskeleton.
3. Create an analogy: the ribosome is like????
YouTube Mahalo Cytoskeleton