Cell Theory Answers

0 verified answers
1
Free Preview

The study of which structure was instrumental in the formulation of the modern cell theory?

A
plant cell
B
animal cell
C
cell membrane
D
DNA molecule
2
Free Preview

According to the cell theory, which structure contains cells?

A
blood
B
water
C
carbon dioxide
D
chromosome
3

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.
4

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.
5

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

A
microbe
B
atom
C
DNA
D
oak bark
6

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.
7

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.
8

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.
9

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
10

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

Did you find these answers helpful?