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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
Robert Hooke
B
Matthias Schleiden
C
Aton van Leeuwnhoek
D
Theodor Schwann
2) 1674, used a single-les microscope to observe pond water. Saw tiny living organisms, even in drinking water.
A
Rudolph VIrchow
B
Theodor Schwann
C
Anton van Leeuwenhoek
D
Robert Hooke
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
molecule
B
DNA
C
cells
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
Electron Microscope
C
scanning electron microscopes (SEM)
D
transmission electron microscope (TEM)
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
electron microscope
B
transmission electron microscope (TEM)
C
scanning electron microscope (SEM)
D
microscope
7) ----
A
b
B
a
C
d
D
c
8) test not finished
A
a
B
c
C
d
D
b
9) test not finished
A
b
B
c
C
d
D
a
10) test not finished
A
b
B
d
C
c
D
a
*select an answer for all questions
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