Cells Lab Write Up
John Leone
Lab Partner(s) Ethan Davis & Ryan Hanna
Date: 12/10/14
Instructor: Dr. Chuckran
Period: H Plants and Animal Cells Abstract: In this lab, you will find out how plant and animal cells are alike and how they are different.
The onion elodea cells were both plants, so they had a cell wall. The cheek cells were animal cells, so they did not have a cell wall. Eukaryotic cells contain structures called organelles that carry out life processes. Eukaryotic cells can be classified by the types of organelles they contain. In plant and animal cells, similarities and differences exist because of varied life functions. Purpose:
In this lab, you will find out how plant and animal cells are alike and how they are different. Material
● Microscope
● slides & coverslips
● water
● cell stains: iodine & methylene blue
● toothpicks
● lens paper
● paper
● pen/pencil Introduction:
Ever since the first microscope was used, biologists have been interested in studying the cellular organization of all living things. After hundreds of years of observations by many biologists, the cell theory was developed. The cell theory states that the cell is the structural and functional unit of living things. Eukaryotic cells contain structures called organelles that carry out life processes. Eukaryotic cells can be classified by the types of organelles they contain. In plant and animal cells, similarities and differences exist because of varied life functions. Procedures:
1. Onion
1.
Remove a scale from the onion.
2.
Snap the scale in half and peel a thin layer of tissue from its inner surface.
3.
Make a wetmount (add 1 drop of water) of a piece of this tissue. Smooth out any "wrinkles."
4.
STAIN with iodine stain, as demonstrated by the teacher.
5.
Put on a cover slip; be sure to angle the cover slip to avoid air bubbles.
6.
Locate cells on SCAN power and then bring up to LOW power and then HIGH power.
7.
Observe, draw, and label.
1.
Lab Partner(s) Ethan Davis & Ryan Hanna
Date: 12/10/14
Instructor: Dr. Chuckran
Period: H Plants and Animal Cells Abstract: In this lab, you will find out how plant and animal cells are alike and how they are different.
The onion elodea cells were both plants, so they had a cell wall. The cheek cells were animal cells, so they did not have a cell wall. Eukaryotic cells contain structures called organelles that carry out life processes. Eukaryotic cells can be classified by the types of organelles they contain. In plant and animal cells, similarities and differences exist because of varied life functions. Purpose:
In this lab, you will find out how plant and animal cells are alike and how they are different. Material
● Microscope
● slides & coverslips
● water
● cell stains: iodine & methylene blue
● toothpicks
● lens paper
● paper
● pen/pencil Introduction:
Ever since the first microscope was used, biologists have been interested in studying the cellular organization of all living things. After hundreds of years of observations by many biologists, the cell theory was developed. The cell theory states that the cell is the structural and functional unit of living things. Eukaryotic cells contain structures called organelles that carry out life processes. Eukaryotic cells can be classified by the types of organelles they contain. In plant and animal cells, similarities and differences exist because of varied life functions. Procedures:
1. Onion
1.
Remove a scale from the onion.
2.
Snap the scale in half and peel a thin layer of tissue from its inner surface.
3.
Make a wetmount (add 1 drop of water) of a piece of this tissue. Smooth out any "wrinkles."
4.
STAIN with iodine stain, as demonstrated by the teacher.
5.
Put on a cover slip; be sure to angle the cover slip to avoid air bubbles.
6.
Locate cells on SCAN power and then bring up to LOW power and then HIGH power.
7.
Observe, draw, and label.
1.