Download Variation of Life Lab

Name:_________________________
Lab Title:
Purpose:
Materials:
Procedure:
Variation of Life
To compare and contrast the kingdoms at the microscopic level
Slides of preserved specimens, digital microscope, computer, elodea leaf, water, slides,
forceps, dropper, cover slips.
Follow instructions as listed below.
Bacteria Slide:
Bacteria are unicellular organisms. They are
prokaryotic.
Draw what you see on 400x. Label the cell
membrane.
What does prokaryotic mean?
________________________________________
What shapes do you see?
________________________________________
Notice that there is no nucleus present.
Animal-like Protists Slide:
You will observe either paramecium or amoeba.
Both are unicellular, eukaryotic and heterotrophic.
Draw one organism on 400x. Be sure to label the
cell membrane and the nucleus.
What does eukaryotic mean?
________________________________________
What does heterotrophic mean?
________________________________________
Plant-like Protists or Algae Slide:
Most plant-like protists, also called algae, are
multicellular and eukaryotic.
Describe how the cells are connected?
______________________________________
Although these cells are eukaryotic, it is hard to
see the nucleus. These protists are also
autotrophic. What does this mean?
_______________________________________
You should see tiny green chloroplasts. Draw one
strand of algae on 100x. Label the chloroplasts
and cell walls. Be sure to show that individual
cells are connected together.
Fungus Slide:
This is a slide of a mold smear. Except for yeast,
all fungi are multicellular and eukaryotic.
Describe the color.
____________________________________________
View on 400x. Label the cell wall.
Are chloroplasts present? _________________
Are fungi autotrophic or heterotrophic?
______________________________________
Are the nuclei visible? ___________________
Plant Cell Slide:
You will be making a wet mount of a common
aquarium plant, Elodea. Take a leaf from the top
of the sprig with a forceps. Place a drop of water
on top and a cover slip. View on 100x.
Draw a group of plant cells as you see them on
low power. Label chloroplasts and cell walls.
Plants are multicellular, eukaryotic and
autotrophic. Their cells are organized into tissues,
which is more complex than the algae.
Animal Slide:
You will be viewing epithelial cells.
Notice that these cells are arranged in tissues, like
the elodea. Animals are multicellular, eukaryotic
and heterotrophic. Note that chloroplasts are not
found in animals; therefore they must obtain their
own food.
Draw a group of animal cells as you see them on
100x. Label the nucleus and cell membrane of
one of the cells.
Variation of Life Lab - Conclusions:
Name:____________________
1.Complete the chart below using the underlined words in the lab handout.
Organisms
Similarities
Differences
Bacteria and Animal-like Protists
Animal-like and Plant-like Protists
Fungus and Plants
Plants and Animals
2. Write a paragraph with at least four sentences describing one of the organisms observed in the lab today.
Be sure to describe using shape, color, organization of cells, as well as characteristics named in the lab
handout and your notes!
3.Which organisms are the most primitive or simple? Support your answer.
4.List two sources of error in your lab.
5. Formulate one idea for further study. What would you like to examine further? What questions do you
still have that could be answered by further study?