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BIOLOGY Unit 6: Cell Division PRACTICE TEST
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1. If a cell cannot move enough material through its membrane to survive, then the ratio of its surface area to volume
is
a. too large.
b. just the right size. c. too small.
d. growing too
quickly.
____
2. Before a cell can proceed to gap 2 from the gap 1 stage of the cell cycle, it must
a. double in size.
c. undergo cytokinesis.
b. complete a full cell cycle.
d. duplicate its DNA.
____
3. During interphase a cell grows, duplicates organelles, and
a. copies DNA.
c. divides the cytoplasm.
b. divides the nucleus.
d. produces a new cell.
____
4. Why do the cells lining the stomach divide more quickly than those in the liver?
a. They are much smaller cells.
c. They need much more surface area.
b. They have fewer chromosomes.
d. They undergo more wear and tear.
____
5. During which of the following stages shown in Figure 5.1 does the cytoplasm of a cell divide?
a. gap 1
____
____
____
____
b. synthesis
6. Cyclins are internal factors that
a. cause apoptosis.
b. control the cell cycle.
c. gap 2
d. mitosis
c. cause cancer cells to break away.
d. prevent mitosis.
7. Proteins from outside a cell that stimulate it to divide are called
a. oncogenes.
b. stem cells.
c. cyclins.
d. growth factors.
8. In a single-celled organism, mitosis is used for
a. development.
b. reproduction.
c. growth.
d. epair.
9. Which of the following is true of malignant tumors?
a. They do not require treatment.
b. They are easily removed through surgery.
c. They can cause tumors in other parts of the body.
d. They contain cells that stay clustered together.
____ 10. One difference between a cancer cell and a normal cell is that
a. cancer cells divide uncontrollably.
b. normal cells divide uncontrollably.
c. cancer cells cannot make copies of DNA.
d. normal cells cannot make copies of DNA.
____ 11. A plant's leaf consists of
a. a group of organs.
b. various types of tissue.
c. organs that form a system.
d. many identical cells.
____ 12. In the picture below, identify the cell the arrow is pointing at. What stage is the cell in?
a. prophase
b. metaphase
c. anaphase
d. telophase
____ 13. Cells in a living thing undergo division at different rates based on
a. the amount of ATP present.
c. their particular function.
b. the size of the nucleus.
d. their size.
____ 14. Why must a cell replicate its DNA prior to mitosis?
a. each cell needs 2 copies of DNA
b. each cell formed in mitosis needs its own copy of DNA
c. some of the DNA gets destroyed in mitosis
d. new cells require more DNA that older cells
____ 15. Chemotherapy involves using ______ to treat cancer, while radiation involves using _____ to treat cancer.
a. medicine/high-energy waves
c. high energy waves/medicine
b. X-rays/the sun’s rays
d. the sun’s rays/X-rays
Short Answer
16. What is the name of the process shown in the diagram? (The letters are for identification, but do not indicate the
order of the process.)
17. Looking at Figure 5.3, write the letter of the stage in the cycle that occurs last.
18. Looking at Figure 5.3, describe the events that take place in part B in the diagram.
19. Looking at Figure 5.3, how are the chromosomes shown in part B different from the ones shown in part D?
20. If you were to count how many onion root tip cells were undergoing each phase of the cell cycle, what stage
would most of them be in? Explain why
BIOLOGY Unit 6: Cell Division PRACTICE TEST
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Answer Section
C
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_202
D
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_210
A
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_218
D
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_226
D
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_234
B
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_243
D
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_251
B
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_268
C
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_276
A
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_284
B
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_300
D
PTS: 1
C
PTS: 1
DIF: Level A
REF: act0976aaf18007e0ef_308
B
PTS: 1
A
PTS: 1
mitosis
D
In part B of the diagram, DNA condenses into tightly coiled chromosomes.
19. ANS: Sample answer: In part B, the chromsomes are duplicated and consist of two sister chromatids. In part
D, the sister chromatids have separated from each other.
20. ANS:
Most cells would be in interphase. This is because interphase is the cycle cells spend most of their time.
Therefore, more cells are likely to be in this phase than other.