Elodea_Paramecium.notebook
December 04, 2013
November 25-26, 2013
1. Record your homework
2. Pay yourself- week 15
+5CCC
QUESTION of the Day:
Get out The Size of Things:
Complete the low power/medium power
estimations on the back.
1.5 mm
2.5 mm
.2 mm
2.6 mm
1.5 mm
.8 mm
1.1 mm
.2 mm
1.5 mm
1.5 mm
1.2 mm
Elodea_Paramecium.notebook
December 04, 2013
Making a Wet Mount Slide:
We are going to set up two different observations on the same slide.
One with an Elodea leaf and one with pond water.
Elodea
Pond Water
Coverslip
Drop of H 2O
Leaf
Slide
Coverslip
Drop of water
Your finished set up
should look like this
Slide
Pond
Water
Elodea_Paramecium.notebook
December 04, 2013
Elodea Lab Part 1
What do you see when you look at the Elodea?
Are the "bricks" empty?
The boxes or "bricks" that you see in the Elodea leaf are cells. Cells are the units from which the Elodea leaf is made. The cells are too small to be seen with the naked eye, but they can be seen clearly with the microscope.
Elodea_Paramecium.notebook
December 04, 2013
Elodea Lab­­Part 2
Are all of the cells in the leaf the same size?
How big are the cells?
We learned during the Field of
View lab, that at high power
0.4mm
(400X), the diameter of the
field of view measures 0.4mm.
0.4mm
About 4 Elodea cells fit across
the FOV. Since 0.4 ÷4 is 0.1,
each cell is about 0.1mm.
Elodea_Paramecium.notebook
December 04, 2013
Elodea Lab­­Part 2
Did you notice any movement inside the cells?
Cells are filled with a fluid called cytoplasm. Cytoplasm can sometimes be seen moving inside the cells of living plants.
Did you notice anything else on the slide or any movement outside the cells?
Elodea_Paramecium.notebook
December 04, 2013
Elodea_Paramecium.notebook
December 04, 2013
Paramecium Lab
What movements did you observe?
What did you see inside of the paramecium?
What did you see on the outside of the paramecium?
Are they living or nonliving? What is your evidence?
Could you see if it was doing all of the the 9 characteristics of life?
Paramecium Lab
2mm
0.4mm
100X
4OOX
To determine the size of the paramecium, estimate how many will fit in the field of view.
Elodea_Paramecium.notebook
December 04, 2013
Lab Review:
1. What did the Elodea leaf look like under the microscope?
2. What did the Paramecium look like under the microscope?
3. Did the Paramecium look like it was made of cells?
4. Do the things inside of the paramecium look like the things inside the Elodea cells?