Cell Theory Answers

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1
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According to the cell theory, which structure contains cells?

A
blood
B
water
C
carbon dioxide
D
chromosome
2
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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
3

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.
4

Which experiments led to changes to the original cell theory?

A
experiments that showed that blood cells transport gases, waste, and nutrients throughout the body
B
experiments that showed that all cells are similar in how they metabolize and in their composition
C
experiments that transplanted synthetic chromosomes into bacterial cells to create a new species
D
experiments that established the existence of single-celled organisms and microbes
5

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
6

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
7

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.
8

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
9

Which type of microscope was the first to be used for studying single-celled organisms?

A
simple microscope
B
tunneling microscope
C
compound light microscope
D
electron microscope
10

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

A
microbe
B
atom
C
DNA
D
oak bark

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