Cell Theory Answers

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1
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Which microscope did Robert Hooke use to study tree bark?

A
electron microscope
B
compound light microscope
C
simple microscope
D
scanning microscope
2
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Which microscope did Anton van Leeuwenhoek use to observe single-celled organisms?

A
simple microscope
B
compound light microscope
C
electron microscope
D
tunneling microscope
3

Which was the first “cell” viewed by the light microscope?

A
microbe
B
atom
C
DNA
D
oak bark
4

In the 1600s, which scientist discovered microbes in pond water by using a microscope?

A
Theodor Schwann
B
Robert Hooke
C
Anton van Leeuwenhoek
D
Matthias Schleiden
5

Which microscope is often used to view metal surfaces?

A
scanning electron microscope
B
scanning tunneling microscope
C
transmission electron microscope
D
compound light microscope
6

Which part of the cell theory is best explained by studying the ability of stem cells to divide and form additional cells?

A
All cells come from preexisting cells.
B
Cells are the basic units of structure and function of all living things.
C
All organisms are composed of cells.
D
All cells are similar in composition and metabolic activities.
7

Which reason best explains why dead specimens must be used with transmission electron microscopes?

A
Electrons pass over the specimen.
B
The lights that are used are harmful to the specimens.
C
Specimens are placed in a vacuum.
D
The image that is produced is two dimensional.
8

Which was Venter’s contribution to science?

A
discovered the existence of single-celled organisms
B
invented the light microscope
C
discovered the structure of DNA
D
invented a synthetic cell
9

According to the cell theory, which describes cells?

A
All organisms are composed of multiple cells.
B
All cells have the same structure and function.
C
Cells are found in everything on Earth.
D
All living cells come from other living cells.
10

According to the cell theory, which structure contains cells?

A
blood
B
water
C
carbon dioxide
D
chromosome

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