True/False
Indicate whether the sentence or statement is true or
false.
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1.
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Cell division in bacteria and
eukaryotes takes place in precisely the same manner.
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2.
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Binary fission is a form of
sexual reproduction in bacteria.
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3.
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After the replication of a
cell’s chromatids, there are twice as many centromeres as there are chromosomes.
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4.
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After cell division, each new
cell will contain the same genetic information as the original cell.
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5.
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Cells spend most of their
lifetime in interphase.
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6.
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Cancer is a disease
characterized by uncontrolled cell division.
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7.
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Spindles move chromosomes
during cell division.
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8.
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Chromatids separate from each
other during telophase.
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9.
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Cytokinesis can only occur
during metaphase.
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10.
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Plant cells cannot undergo cell
division because of their strong cell walls.
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Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
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11.
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Which of the following shows
the correct sequence of the cell cycle? a. | C → M
→ G1 → S
→ G2 | c. | G1 → S → G2 → M → C | b. | S → G1 → G2 → M →
C | d. | None of the above | | | | |
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12.
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The synthesis (S) phase is
characterized by a. | DNA replication. | b. | cell division. | c. | replication of mitochondria and other
organelles. | d. | the division of cytoplasm. | | |
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13.
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In eukaryotes, the cell cycle
is controlled by a. | proteins. | c. | lipids. | b. | carbohydrates. | d. | fats. | | | | |
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14.
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Refer to the illustration
above. The cell in diagram 1 is in a. | metaphase. | c. | anaphase. | b. | telophase. | d. | prophase. | | | | |
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15.
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Refer to the illustration
above. Mitosis begins with the stage shown in diagram
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16.
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Refer to the illustration
above. The cell shown in diagram 5 is in a. | metaphase. | c. | anaphase. | b. | telophase. | d. | prophase. | | | | |
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17.
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Refer to the illustration
above. Which of the following correctly indicates the order in which these events
occur? a. | A, B, C, D | c. | B, A, C, D | b. | C, B, A, D | d. | A, C, B, D | | | | |
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18.
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Refer to the illustration
above. During which stage do the centromeres divide?
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19.
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As a cell becomes larger,
its a. | volume increases faster than its surface area. | b. | surface area increases faster than its volume. | c. | volume increases, but its surface area stays the same. | d. | surface area stays the same, but its volume increases. | | |
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20.
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As a cell grows,
it a. | places more demands on its DNA. | b. | uses up food and oxygen more quickly. | c. | has more trouble moving enough materials across its cell
membrane. | d. | all of the above | | |
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21.
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If the surface area of a cell
increases 100 times, its volume increases about a. | 5 times. | c. | 100 times. | b. | 10 times. | d. | 1000 times. | | | | |
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22.
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All of the following are
problems that growth causes for cells EXCEPT a. | DNA
overload. | c. | obtaining enough food. | b. | excess
oxygen. | d. | expelling wastes. | | | | |
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23.
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Which of the following happens
when a cell divides? a. | The cell’s volume
increases. | b. | It becomes more difficult for the cell to get enough oxygen and
nutrients. | c. | The cell has DNA overload. | d. | Each daughter cell receives its own copy of the parent cell’s
DNA. | | |
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24.
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Which of the following is a
phase in the cell cycle? a. | G1
phase | c. | M phase | b. | G2
phase | d. | all of the above | | | | |
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25.
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When during the cell cycle is a
cell’s DNA replicated? a. | G1
phase | c. | S phase | b. | G2
phase | d. | M phase | | | | |
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26.
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Which event occurs during
interphase? a. | The cell grows. | c. | Spindle fibers begin to
form. | b. | Centrioles appear. | d. | Centromeres
divide. | | | | |
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27.
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Which of the following is NOT a
correct statement about the events of the cell cycle? a. | Interphase is usually the longest phase. | b. | DNA replicates during the S phase. | c. | Cell division ends with cytokinesis. | d. | The cell grows during the G2 phase. | | |
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Figure 10–1
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28.
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Cell division is represented in
Figure 10–1 by the letter
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29.
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The cell cycle is
the a. | series of events that cells go through as they grow and
divide. | b. | period of time between the birth and the death of a
cell. | c. | time from prophase until cytokinesis. | d. | time it takes for one cell to undergo mitosis. | | |
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Figure 10–2
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30.
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The structure labeled A in
Figure 10–2 is called the a. | centromere. | c. | sister chromatid. | b. | centriole. | d. | spindle. | | | | |
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31.
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The structures labeled B in
Figure 10–2 are called a. | centromeres. | c. | sister chromatids. | b. | centrioles. | d. | spindles. | | | | |
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32.
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During which phase(s) of
mitosis are structures like the one shown in Figure 10–2 visible? a. | anaphase and prophase | c. | metaphase only | b. | prophase and metaphase | d. | anaphase and interphase | | | | |
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33.
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Which of the following is a
phase of mitosis? a. | cytokinesis | c. | prophase | b. | interphase | d. | S phase | | | | |
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34.
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The first phase of mitosis is
called a. | prophase. | c. | metaphase. | b. | anaphase. | d. | interphase. | | | | |
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35.
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During which phase of mitosis
do the chromosomes line up along the middle of the dividing cell? a. | prophase | c. | metaphase | b. | telophase | d. | anaphase | | | | |
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36.
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Which of the following
represents the phases of mitosis in their proper sequence? a. | prophase, metaphase, anaphase, telophase | b. | interphase, prophase, metaphase, anaphase, telophase | c. | interphase, prophase, metaphase, telophase | d. | prophase, metaphase, anaphase, telophase, cytokinesis | | |
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37.
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What is the role of the spindle
during mitosis? a. | It helps separate the chromosomes. | b. | It breaks down the nuclear membrane. | c. | It duplicates the DNA. | d. | It divides the cell in
half. | | |
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38.
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One difference between cell
division in plant cells and in animal cells is that plant cells have a. | centrioles. | c. | a cell plate. | b. | centromeres. | d. | chromatin. | | | | |
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39.
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During normal mitotic cell
division, a parent cell having four chromosomes will produce two daughter cells, each
containing a. | two chromosomes. | c. | eight
chromosomes. | b. | four chromosomes. | d. | sixteen
chromosomes. | | | | |
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40.
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What happens when cells come
into contact with other cells? a. | They divide more
quickly. | c. | They produce cyclins. | b. | They stop
growing. | d. | They produce p53. | | | | |
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41.
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Cells grown in a petri dish
tend to divide until they form a thin layer covering the bottom of the dish. If cells are removed
from the middle of the dish, the cells bordering the open space will begin dividing until they have
filled the empty space. What does this experiment show? a. | When cells come into contact with other cells, they stop
growing. | b. | The controls on cell growth and division can be turned on and
off. | c. | Cell division can be regulated by factors outside the
cell. | d. | all of the above | | |
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42.
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When cytoplasm from a cell that
is undergoing mitosis is injected into a cell that is in interphase, the second cell a. | stays in interphase. | c. | stops making cyclin. | b. | enters mitosis. | d. | loses its p53. | | | | |
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43.
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In eukaryotic cells, the timing
of the cell cycle is regulated by a. | the
centrioles. | c. | the spindle. | b. | cyclins. | d. | all of the above | | | | |
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44.
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Cyclins are a family of closely
related proteins that a. | regulate the cell
cycle. | c. | cause cancer. | b. | produce
p53. | d. | work to heal wounds. | | | | |
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45.
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Which of the following is an
internal regulator of the cell cycle? a. | cyclins | c. | the mitotic
spindle | b. | growth factors | d. | cancer cells | | | | |
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46.
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Cancer is a disorder in which
some cells have lost the ability to control their a. | size. | c. | growth rate. | b. | spindle fibers. | d. | surface area. | | | | |
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47.
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Cancer cells form masses of
cells called a. | tumors. | c. | growth factors. | b. | cyclins. | d. | p53. | | | | |
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48.
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Cancer affects a. | humans only. | c. | multicellular organisms. | b. | most unicellular organisms. | d. | unicellular
organisms. | | | | |
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49.
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If you randomly plucked a cell
from a living organism, in which phase wold it most likely be? a. | interphase | c. | mitosis | b. | metaphase | d. | G2 | | | | |
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50.
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Onion root tips are regions of
rapid growth, therefore most of the cells found here are in a. | interphase | c. | mitosis | b. | metaphase | d. | G2 | | | | |
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51.
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Which is not true of
cancer a. | it is more likely to occur in older
people | c. | risk factors can be avoided | b. | it is a genetic
disease | d. | it’s causes and best treatments are understood well by medical
science. | | | | |
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52.
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Treatments for cancer include
all of the following EXCEPT a. | chemotherapy | c. | removal of a tumor | b. | radiation therapy | d. | decapitation | | | | |
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Matching
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Match’em
Dog! a. | telomerase | e. | malignant | b. | p53 | f. | radon | c. | carcinogen | g. | oncogenes | d. | metastisize | h. | cyclin | | | | |
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53.
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a tumor supressor
gene
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54.
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a cancer causing
agent
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55.
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a colorless oderless gas that
can seep from rocks and cause cancer.
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56.
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a protein that regulates the
mitosis
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57.
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a cancer tumor
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58.
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an enzyme that fixes the pieces
on the end of a strand of DNA that can act as a fuse resulting in cell death.
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59.
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genes that stimulate cell
growth
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60.
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a tumor that spreads to other
body regions.
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