Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Plant and Animal Cells Microscope Lab, Slides of Cell Biology

Students will discover that their skin is made up of cells. Students will observe cheek cells under a microscope. Materials: • microscope. • two glass slides. • ...

Typology: Slides

2022/2023

Uploaded on 03/01/2023

jokerxxx
jokerxxx 🇺🇸

4.3

(36)

335 documents

1 / 3

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Name ______________________________________ Date _________________
Plant and Animal Cells Microscope Lab
Objectives:
Students will discover that onions are made up of cells.
Students will observe onion cells under a microscope.
Students will discover that their skin is made up of cells.
Students will observe cheek cells under a microscope.
Materials:
microscope
two glass slides
iodine stain
methylene blue stain
two cover slips
an onion
a toothpick
Procedures:
Onion cells
1. Peel a translucent piece of tissue from the onion. (The smaller the piece the
better.) Translucent means that you can see light through the specimen, but it is
not transparent.
2. Place the piece of onion on a glass slide and add a drop of the iodine solution.
Cover the slide with a cover slip using your best wet-mount making techniques.
3. Observe the onion cell under both low and high power. Make a drawing of one
onion cell, labeling all of its parts as you observe them.
(At minimum, you should observe the nucleus, cell wall, and cytoplasm.)
Cheek cells
1. To view cheek cells, gently scrape the inside lining of your cheek with a
toothpick. DO NOT GOUGE THE INSIDE OF YOUR CHEEK! (We will observe
blood cells in a future lab!!)
2. Gently roll and rub the toothpick onto the top of a glass slide in an area that
will be visible through the microscope.
3. Add a drop of methylene blue (specific for animals) and cover with a cover slip.
4. Observe the cheek cells under both low and high power of your microscope.
Draw a diagram of one cheek cell and label the parts.
(You should observe the cell membrane, nucleus, and cytoplasm.)
pf3

Partial preview of the text

Download Plant and Animal Cells Microscope Lab and more Slides Cell Biology in PDF only on Docsity!

Plant and Animal Cells Microscope Lab Objectives: Students will discover that onions are made up of cells. Students will observe onion cells under a microscope. Students will discover that their skin is made up of cells. Students will observe cheek cells under a microscope. Materials:  microscope  two glass slides  iodine stain  methylene blue stain  two cover slips  an onion  a toothpick Procedures: Onion cells

  1. Peel a translucent piece of tissue from the onion. (The smaller the piece the better.) Translucent means that you can see light through the specimen, but it is not transparent.
  2. Place the piece of onion on a glass slide and add a drop of the iodine solution. Cover the slide with a cover slip using your best wet-mount making techniques.
  3. Observe the onion cell under both low and high power. Make a drawing of one onion cell, labeling all of its parts as you observe them. (At minimum, you should observe the nucleus, cell wall, and cytoplasm.) Cheek cells
  4. To view cheek cells, gently scrape the inside lining of your cheek with a toothpick. DO NOT GOUGE THE INSIDE OF YOUR CHEEK! (We will observe blood cells in a future lab!!)
  5. Gently roll and rub the toothpick onto the top of a glass slide in an area that will be visible through the microscope.
  6. Add a drop of methylene blue (specific for animals) and cover with a cover slip.
  7. Observe the cheek cells under both low and high power of your microscope. Draw a diagram of one cheek cell and label the parts. (You should observe the cell membrane, nucleus, and cytoplasm.)

Observation: The following labeled drawings must be completed. Drawings MUST be completed neatly using a pencil/colored pencil.

  1. Onion Cell drawing (high power)

  2. Cheek cell drawing (any power but preferably high) Drawings, Conclusions and Questions: Onion Cell Label:Cell WallNucleusCytoplasm Cheek Cell Label:Cell MemebraneNucleusCytoplasm Complete the following chart: The Cell organelle found in plant, animal, or both. (See the diagrams) (Place an x in the appropriate box) Organelle Plant Animal Function (look these up online) Nucleus Cell Wall Chloroplast Cytoplasm Cell Membrane