Download Animal Cells (Human Cheek Cells)

Animal Cells
Name _____________________
Class#:_____________________
(Human Cheek Cells)
Pre Lab Questions
1. Describe the Cell Theory
2. Answer the five COD questions (plus one more) for Anamalia:
a. Single celled or multicellular?
b. Cell wall present?
c. Heterotroph or Autotroph?
d. Sessile or Motile?
e. Sexual or asexual reproduction?
f. Prokaryote or eukaryote?
3. Write a short description of each of the following:
a. eukaryote
b. cell membrane
c. nucleus
d. cytoplasm
e. organelle
Lab Procedure
1. Put a drop of methylene blue on a slide. Caution: methylene blue will
stain clothes and skin.
2. Gently scrape the inside of your cheek with the flat side of a toothpick.
Scrape lightly.
3. Stir the end of the toothpick in the stain and throw the toothpick away.
4. Place a coverslip onto the slide
5. Use the low power to find the cells. Cells should be visible, but they will
be small and look like nearly clear purplish blobs. If you are looking at
something dark dark purple, it is probably not a cell
6. Once you think you have located a cell, switch to medium, then high
power and refocus.(Remember, do NOT use the coarse adjustment
knob at this point)
---Sketch the cell at high power. Label the nucleus, cytoplasm, and cell
membrane. Draw your cells to scale.
High Power
Post-Lab Questions
1. The microscope used in the lab is not powerful enough to view other
organelles in the cheek cell like lysosomes and mitochondria. What are
the functions of these two parts? (Check your Anamalia terms
worksheet.)
2. Is the cheek cell a eukaryote or prokaryote? How do you know?
3. How do you know by looking at it that this is an animal cell and not a
plant cell?
4. This cell came from your cheek. What phylum are you?
5. What are some of the distinguishing characteristics of the phylum you
belong to?
6. Over the past several months we have looked at cells of euglena,
elodea, paramecium, and now humans. What do all these cells have
in common?
7. (From #7) What are some of the differences?