Cells - How big is a cell?
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by Kathy Egbert
| 15 Questions
Go to the following link. Divide your screen so you can see the CellsAlive website and goformative to answer the questions while you watch the animation
http://www.cellsalive.com/howbig.htm

General information to help you:
  • the specimens are in blue along the right side (this is the "Key" for the list of specimens)
  • you can move the cursor over the name of each specimen and see what they look like in the small box above the list
  • use the arrow by "magnification" to zoom in and out to see the sizes of the specimens that can be found on the top of a pin head
1
1
What is the smallest specimen that is on the top of the head of the pin?
B E. coli (bacteria)
E Ebola virus
A lymphocyte
C staphylococcus (bacteria)
D rhinovirus
2
1
Zoom out a little farther. What is the purple stained, hook-shaped specimen?
C E. coli (bacteria)
A Ebola virus
B Rhinovirus
D Staphylococcus (bacteria)
3
1
Compare sizes of the specimens by selecting the largest one in the following pair.
A E. coli (bacteria) or
B baker's yeast (Fungi)
4
1
Compare sizes of the specimens by selecting the largest one in the following pair.
A ragweed pollen (plant) or
B lymphocyte (animal cell)
5
1
Compare sizes of the specimens by selecting the largest one in the following pair.
A dust mite (animal) or
B ragweed pollen
6
1
Compare sizes of the specimens by selecting the largest one in the following pair.
A staphylococcus (bacteria) or
B red blood cell (animal)
7
1
The ebola virus is ______ times larger than the rhinovirus.
A same size
B 10
C 100
D 1,000
E 10,000
8
1
What is the correct power of ten for this measurement in the metric system? 1 millimeter = 10__
A -3
B -6
C -9
9
1
What is the correct power of ten for this measurement in the metric system? 1 micron = 10 __
A -3
B -6
C -9
10
1
What is the correct power of ten for this measurement in the metric system? 1 nanometer = 10___
A -3
B -6
C -9
11
1
Use your own knowledge or other resources to answer the following: Which of the specimens is a part of a plant?
A baker's yeast
B ragweed pollen
C dust mite
12
1
Use your own knowledge or other resources to answer the following: Which of the specimens is a prokaryote cell?
viruses are not considered living cells
A staphylococcus and E.coli
B rhinovirus and Ebola virus
C red blood cell and lymphocyte
13
1
Use your own knowledge or other resources to answer the following: Which of the specimen(s) is a eukaryote cell?
A lymphocyte and red blood cells
B dust mite
C E. coli
14
1
Use your own knowledge or other resources to answer the following: Which of the specimens belong to the Kingdom Fungi?
A ragweed pollen
B staphylococcus
C baker's yeast
15
1
Use your own knowledge or other resources to answer the following: Describe how the size of prokaryotic cells compares to that of eukaryotic cells.
A they are about the same size
B prokaryotic cells are larger than eukaryotic cells
C eukaryotic cells are larger than prokaryotic cells
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