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Biology Chap 7 (7.1 - 7.2)
Test Description: Cell Structure and Function
Instructions: Answer all questions to get your test result.
1) 1665, Englishman used compound microscope to look at cork. Called what he saw (tiny, empty chambers) \
A
Matthias Schleiden
B
Theodor Schwann
C
Robert Hooke
D
Aton van Leeuwnhoek
2) 1674, used a single-les microscope to observe pond water. Saw tiny living organisms, even in drinking water.
A
Robert Hooke
B
Anton van Leeuwenhoek
C
Theodor Schwann
D
Rudolph VIrchow
3) Cell Theory
A
All living things are composed of cells
B
Cells are the basic units of structure and function of living things
C
New Cells are produced from existing cells
D
All of the other three answers
4) basic units of life
A
DNA
B
cells
C
molecule
D
nucleus
5) Uses a pencil-like beam of electrons which is scanned over the surface of a specimen. Does not have to cut specimens into thin slices.
A
none of the answers
B
transmission electron microscope (TEM)
C
scanning electron microscopes (SEM)
D
Electron Microscope
6) makes it possible to explore cell structures and large protein molecules. Because beams of electrons cannot pass through thin samples, cells and tissues must be cut first.
A
microscope
B
transmission electron microscope (TEM)
C
scanning electron microscope (SEM)
D
electron microscope
7) ----
A
b
B
c
C
a
D
d
8) test not finished
A
c
B
d
C
a
D
b
9) test not finished
A
a
B
d
C
c
D
b
10) test not finished
A
a
B
c
C
b
D
d
*select an answer for all questions
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