Download You will observe plant and animal cells using prepared slides

Name: _______________________________________Date: _________Block: ____
You will observe plant and animal cells using prepared slides and wet-mount
slides. At the end of this lab, you should be able to explain how plant cells
are different from animal cells and how they are the same.
PART ONE: HUMAN BLOOD
Capture an image of a human blood cell under high power. Label the cell membrane. Save
the image as a jpeg file.
PART TWO: ELODEA
1. Obtain a small piece of an elodea leaf (underwater plant).
2. Put a few drops of water on the specimen and cover it with a cover slip.
3. Examine this under low power then high power.
4. Capture an image of elodea cells (a plant cell) under high power. Label the following
parts: cell wall, nucleus, vacuole, and chloroplast. Save the image as a jpeg file.
PART THREE: POTATO WET MOUNT
1. With the razorblade CAREFULLY slice a thin piece of potato (your teacher will
demonstrate the proper method) and place it on your slide.
2. Put a few drops of water on the specimen and cover it with a cover slip.
3. Examine this under low power then high power.
4. Add a few drops of Iodine at the edge of the coverslip and wait 1-2 minutes.
5. Put a few drops of water on the specimen to wash the excess iodine off of the
specimen. You may need to lightly dab the excess iodine/water from the slide.
5. Capture an image of the potato cell stained with iodine under high power. Label the
cell membrane and the sacs filled with starch. Save the image as a jpeg file.
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PART FOUR:
1. Put all pictures in a PowerPoint.
2. Copy the questions below into your PowerPoint. Type your answers to these questions.
3. Save your PowerPoint with the following file name: your last name, first initial cell lab
(example: flick t cell lab) in your student folder.
QUESTIONS
1.
What is the shape of an elodea cell (plant cell)?
2.
What is the shape of a frog’s blood cell (animal cell)?
3.
Could you see the vacuole in the frog blood cells? Why or why not?
4.
What organelles did the plant cell have that the animal cells did not have?
5.
Why does a plant cell need chloroplasts?
6.
Why does an animal cell NOT need chloroplasts?
7.
Do plant cells and animal cells both have mitochondria?
8.
Why did the iodine change to dark purple/black when you added it to potato cells?
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