Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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A
cell moves particles from a region of lesser concentration to a region of greater concentration by
_____. a. | passive
transport | c. | osmosis | b. | active transport | d. | facilitated diffusion | | | | |
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2.
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If
the sides of a cell double in length, its volume increases by _____ times.
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3.
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A
chromatid is attached to a spindle fiber by the _____. a. | centriole | c. | nucleolus | b. | centromere | d. | deep furrow | | | | |
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4.
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Among
the following, the term that includes the others is _____. a. | mitosis | c. | interphase | b. | nuclear division | d. | cell cycle | | | | |
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5.
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Which
of the following monitors a cell's progress from phase to phase during the cell
cycle? a. | a series of
enzymes | c. | microtubules | b. | lipid molecules | d. | protein molecules | | | | |
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6.
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Water
moves out of a cell if the cell is placed in a(n) _____ solution. a. | isotonic | c. | hypertonic | b. | hypotonic | d. | passive | | | | |
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7.
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Water
moves into a cell placed in a(n) _____ solution. a. | hypertonic | c. | hypotonic | b. | osmotic | d. | isotonic | | | | |
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8.
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Unlike plant cells, animal cells contain _____. a. | cell
walls | c. | spindles | b. | nucleoli | d. | centrioles | | | | |
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9.
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Which
of the following explains why a cell's size is limited? a. | Volume increases
faster than surface area. | b. | Surface area increases faster than
volume. | c. | Homeostasis is disrupted by a cell that is too
large. | d. | both a and c | | |
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10.
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The
longest phase of the cell cycle is _____. a. | metaphase | c. | interphase | b. | mitosis | d. | prophase | | | | |
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11.
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The
structure most responsible for maintaining cell homeostasis is the _____. a. | cytoplasm | c. | plasma
membrane | b. | mitochondrion | d. | cell wall | | | | |
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12.
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A
gene is a segment of DNA that controls the production of _____. a. | proteins | c. | microtubules | b. | carbohydrates | d. | centromeres | | | | |
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13.
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If
the sides of a cell double in length, its surface area becomes _____ times as large.
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14.
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What
level of organization is shown in Figure 8-7?
a. | organ
system | c. | organ | b. | tissue | d. | organism | | | | |
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15.
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If
cells are placed in a strong sugar solution, water will _____. a. | stay in the
cell | b. | pass back and
forth | c. | pass from the cells to the sugar
solution | d. | pass from the sugar solution to the
cells | | |
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Figure 8-8
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16.
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Which
of the cells depicted in the line graph in Figure 8-8 are most likely cancerous?
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17.
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If
cancer is present, what is the likely explanation for what happened to cells B and
D? a. | they died off on
due to natural causes | b. | they were harmed by radiation therapy | c. | they died off
because the cancerous cells deprived them of nutrients | d. | they thrived
with the cancerous cells | | |
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18.
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Which
conditions shown in Figure 8-4 might cause a cell to burst?
Figure 8-4
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19.
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If a
cell is placed in salt water, water leaves the cell by _____. a. | active
transport | c. | osmosis | b. | phagocytosis | d. | diffusion | | | | |
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20.
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What
cell process is responsible for the effect shown in Figure 8-5?
Figure 8-5 a. | active transport | c. | facilitated diffusion | b. | passive
transport | d. | osmosis | | | | |
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21.
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The
chromosomes shown in Figure 8-6 are in which state of mitosis?
Figure 8-6 a. | anaphase | c. | prophase | b. | metaphase | d. | telophase | | | | |
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22.
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Which
of the following structures is the most complex? a. | tissue | c. | cell | b. | organ | d. | organ system | | | | |
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23.
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The
causes of cancer may include which of the following? a. | UV
radiation | c. | environmental
influences | b. | viruses | d. | all of the above | | | | |
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24.
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Which
of the following is not a form of passive transport? a. | facilitated
diffusion | c. | osmosis | b. | facilitated diffusion | d. | endocytosis | | | | |
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25.
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As a
cell grows, its _____ increases more than its _____. a. | width, surface
area | c. | length,
volume | b. | volume, surface area | d. | none of these | | | | |
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26.
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By
the end of prophase, each of the following has occurred except _____. a. | breaking down of
the nuclear envelope | b. | lining up of chromosomes in the cell | c. | tighter coiling
of the chromosomes | d. | disappearing of the nucleolus | | |
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