Cell Magnification Lab with Powerpoint
You will create a Powerpoint presentation of various cells magnified under a microscope.
Using a digital camera or camera phone take a picture of each of the following cells through a
microscope at 100x and 400x. Take all of your pictures then transfer them to a flash drive or
save them on your phone/camera. Later you will copy the pictures from your device and paste
them to Powerpoint slides.
Directions - Take a picture of each of the following at 100x and 400x;
Onion cell – cell wall, cytoplasm, nucleus (use blue stain)
Tomato cell – cell membrane, cytoplasm, red pigment
Pear cell – cell membrane, cytoplasm, crystals (use blue stain)
Cheek cell – cell membrane, cytoplasm, nucleus (use blue stain)
Plant cell – cell wall, chloroplasts, nucleus, cytoplasm
Ruler – nothing to label
Make sure you can see the organelles listed after each in your pics because they will
need to be labeled on your Powerpoint presentation.
Directions for Powerpoint Presentation
Slide 1 – Make an introductory slide with the title (Cell Magnification Lab), your name, date,
hour.
Slide 2 – A slide of a ruler mm marks magnified 100x. Include at least two mm marks in the
picture.
Slide 3 - Make a slide of a ruler mm marks magnified 400x. Try to include two mm marks in
the picture.
Slide 4 – A slide of onion cells at 100x (use one drop of blue dye for cells to be more visible).
Label; cell wall, cytoplasm and nucleus. Determine the size of a typical cell in
micrometers.
Slide 5 - A slide of onion cells at 400x (use one drop of blue dye for cells to be more visible).
Label; cell wall, cytoplasm and nucleus
Slide 6 – A slide of tomato cells at 100x. Just scrape some of the juice onto the slide. No
hunks. Make sure to get at least one whole cell in the picture. No blue dye.
Determine the size of a typical cell in micrometers.
Label; plasma membrane, cytoplasm and red pigment.
Slide 7 – A slide of tomato cells at 400x. These cells are so large that you shouldn’t be able to
fit one in your field of view at 400x. Try to include the edge of at least one cell.
No blue dye.
Label; plasma membrane, cytoplasm and red pigment
Slide 8 – A slide of pear cells at 100x. Just scrape some juice onto the slide. No hunks, no blue
dye. Determine the size of a typical cell in micrometers.
Label; plasma membrane, cytoplasm and dark crystals
Slide 9 – A slide of pear cells at 400x. Just scrape some juice onto the slide. No hunks, no
blue dye. The crystals will be too large at this magnification so don’t bother including
them.
Label; plasma membrane and cytoplasm
Slide 10 – A slide of cheek cells at 100x (use one drop of blue dye to make cells more visible).
Determine the size of a typical cell in micrometers.
Label; plasma membrane, cytoplasm and nucleus
Slide 11 – A slide of cheek cells at 400x (use one drop of blue dye to make cells more visible).
Label; plasma membrane, cytoplasm and nucleus
Slide 12 – A slide of plant cells at 100x. No dye. Put one leaf or part of a leaf on a slide
with water. Determine the size of a typical cell in micrometers.
Label; cell wall, cytoplasm, chloroplast
Slide 13 – A slide of plant cells at 400x. No dye. Put one leaf or part of a leaf on a slide
with water.
Label; cell wall, cytoplasm, chloroplast
Slide 14 – Using the ruler magnified at 100x, calculate the distance of 1000 mcirometers and measure
your cells from the 100x pics (do not measure at 400x). Click on the graph icon in the top
tool bar. Create a bar graph comparing the relative sizes of each cell type. Title the
graph “Relative Cell Sizes in micrometers.” Use the help button if you need help.
When finished email it to your teacher or put it on a flash drive with your name on it.