Onion Cells Under Microscope
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Onion Cells Under Microscope

Lab.# 2 - Plant and Animal Cells - bj 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.Key QuestionsMaterials: microscope, two glass slides, iodine stain,

methylene blue stain, two cover slips, an onion, and a 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.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 2.

Gently tap the toothpick onto the center of a glass slide.

Some of the cheek cells should fall onto the slide.

3.

Add a drop of methylene blue stain (specific for animals) and cover with a cover slip.
should observe the cell membrane, nucleus, and cytoplasm.)

Observation: The following labeled drawings should be completed on your own paper.

These neat drawings MUST be completed using a pencil.1.Onion Cell Drawing (low power) 2.Onion Cell Drawing (high power)

Conclusions and Questions: 1.

Complete the following chart

Cell organelle

Found in plant, animal, or both
Function -------------------------------------------------------------------------------------------------------------- nucleus ------------------------------------------------------------------------------------------------------------- cell wall ------------------------------------------------------------------------------------------------------------- chloroplast cytoplasm ----------------------------------------------------------------------------------------------------------- cell membrane ----------------------------------------------------------------------------------------------------------

II.

Why do we stain specimens?

III.

Why must the specimen you observe be very thin?

IV.

Onion cells are plants.

Therefore, why were there no chloroplasts in the onion cells you to take a look at your key questions and complete them as well.
onion cells under microscope
Osmosis Red Onion Cells - Mr Polidoros Classroom
distilled water and observe them under MEDIUM power. ... When the salt solution was added to the onion cells, where was the greater concentration (most pure) of (mrphome.net)
Cork And Onion Skin
Cork and Onion Cells BACKGROUND MATERIALS Microscope Slides Cover Slips ... View your onion skin under low power (100X). Draw and label your diagram. (mrphome.net)
Cells Online Worksheet
Onion cells were placed on microscope slides in water (Slide A) or methylene blue ... The cells were viewed under the light microscope at 200x magnification. (mrphome.net)
.
Osmosis red onion cells
Lab.# 2 - Plant and Animal Cells - bj 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.Key QuestionsMaterials: microscope, two glass slides, iodine stain,

methylene blue stain, two cover slips, an onion, and a 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.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 2.

Gently tap the toothpick onto the center of a glass slide.

Some of the cheek cells should fall onto the slide.

3.

Add a drop of methylene blue stain (specific for animals) and cover with a cover slip.
should observe the cell membrane, nucleus, and cytoplasm.)

Observation: The following labeled drawings should be completed on your own paper.

These neat drawings MUST be completed using a pencil.1.Onion Cell Drawing (low power) 2.Onion Cell Drawing (high power)

Conclusions and Questions: 1.

Complete the following chart

Cell organelle

Found in plant, animal, or both
Function -------------------------------------------------------------------------------------------------------------- nucleus ------------------------------------------------------------------------------------------------------------- cell wall ------------------------------------------------------------------------------------------------------------- chloroplast cytoplasm ----------------------------------------------------------------------------------------------------------- cell membrane ----------------------------------------------------------------------------------------------------------

II.

Why do we stain specimens?

III.

Why must the specimen you observe be very thin?

IV.

Onion cells are plants.

Therefore, why were there no chloroplasts in the onion cells you to take a look at your key questions and complete them as well..
Keithnetic: Onion Cells
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We tested our blood types in Biology today. Got all of the Twilight-feels! Almost more than when we looked at onion cells & the mitosis ;)
Observing onion cells cdnishk
Tags: red onion cells under microscope,onion root cell under microscope,skin cells under a microscope,cheek cells under microscope,onion skin microscope lab,
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