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Campbell Biology in Focus, 2e (Urry) Chapter 4 A Tour of the Cell Test Bank
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Campbell Biology in Focus, 2e (Urry)Chapter 4 A Tour of the Cell Test Bank
Study online at https://quizlet.com/_dlgzym
1. When biologists wish to study the internal ultrastruc-
ture of cells, they can achieve the finest
resolution by using a
A) phase-contrast light microscope.
B) scanning electron microscope.
C) transmission electronic microscope.
D) confocal fluorescence microscope.
2. One advantage of light microscopy over transmission
electron microscopy is that
A) specimen preparation for light microcopy does not
produce artifacts.
B) light microscopy provides for higher resolving
power than transmission electron microscopy.
C) light microscopy provides for higher magnification
than transmission electron microscopy.
D) light microscopy allows one to view dynamic
processes in living cells.
3. Biologists commonly use cell fractionation to
A) sort cells based on their size and weight.
B) visualize the 3-D structure of cell membranes.
C) isolate organelles to examine their biological func-
tions.
D) examine the distribution of organelles within the
cell.
4. When subcellular components from disrupted cells
are separated using centrifugation, the
primary factor that determines whether a specific cel-
lular component remains in the liquid
solution or ends up in the pellet is
A) the relative size and weight of the component.
B) the relative solubility of the component.
C) how hydrophobic the component is.
D) the carbohydrate composition of the component.
5. When disrupted cells are spun in a centrifuge at in-
creasingly higher speeds, which of the
, Campbell Biology in Focus, 2e (Urry)
Chapter 4 A Tour of the Cell Test Bank
Study online at https://quizlet.com/_dlgzym
following correctly lists the order in which cellular
components will pellet?
A) ribosomes, nuclei, mitochondria
B) chloroplasts, ribosomes, pieces of membrane
C) nucleus, ribosomes, chloroplasts
D) nucleus, mitochondria, ribosomes
6. What is the primary reason that a modern transmis-
sion electron microscope (TEM) can
resolve biological images as small as 2 nm, whereas
200 nm is the limit of resolution for a light
microscope?
A) Diffraction of light by a light microscope distorts
the image.
B) Contrast is enhanced by staining with atoms of
heavy metal.
C) Electron beams have much shorter wavelengths
than visible light.
D) TEM is used to visualize very thin sections of cells.
7. What technique would be most appropriate to use to
observe the movements of condensed
chromosomes during cell division?
A) standard light microscopy
B) super-resolution microscopy
C) transmission electron microscopy
D) scanning electron microscopy
8. The smallest cell structures that would most likely be
visible with a standard (not super-
resolution) research-grade light microscope is
A) microtubules.
B) chloroplasts.
C) ribosomes.
D) nuclear pores.
9. Which of the following may be found in eukaryotic
cells, but not in bacteria?
A) DNA
, Campbell Biology in Focus, 2e (Urry)
Chapter 4 A Tour of the Cell Test Bank
Study online at https://quizlet.com/_dlgzym
B) flagella
C) plasma membrane
D) ribosomes
E) endoplasmic reticulum
10. Which of the following will be found in nearly all eu-
karyotic cells?
A) cell wall
B) mitochondria
C) chloroplast
D) nucleoid
E) capsule
11. Which of the following statements concerning cells of
bacteria and archaea is correct?
A) Archaea contain small membrane-enclosed or-
ganelles; bacteria do not.
B) Archaea contain a membrane-bound nucleus; bac-
teria do not.
C) DNA is present in both archaea and bacteria.
D) DNA is present in the mitochondria of both bacteria
and archaea.
12. Prokaryotes are classified as belonging to two differ-
ent domains. What are the domains?
A) Bacteria and Eukarya
B) Bacteria and Protista
C) Archaea and Protista
D) Bacteria and Archaea
13. Large numbers of ribosomes are present in cells that
specialize in producing which of the
following molecules?
A) lipids
B) glycogen
C) proteins
D) cellulose
E) nucleic acids
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