Cell Theory Answers

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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
3

Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope?

A
A compound microscope has greater magnification ability than a simple microscope.
B
The compound microscope was invented before the simple microscope.
C
A compound microscope is much easier to manufacture than a simple microscope.
D
Compound microscopes were more common than simple microscopes.
4

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
5

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.
6

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.
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 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
9

Which microscope uses a series of lenses to magnify an object in steps?

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

What do scanning electron microscopes and transmission electron microscopes have in common?

A
Both generate three-dimensional images.
B
Both offer magnification to the atomic level.
C
Both are used to view the parts of a cell.
D
Both require a vacuum.

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Cell Theory Answers — FL-2000310-Biology 1 A