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Bio I/I Honors Unit 6 TEST Cell Division
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1. Growth factors are located
a. inside the cell only.
b. outside the cell only.
c. both inside and outside the cell.
d. neither inside nor outside the cell.
USE THE FOLLOWING SCENARIO AND CHOICES a, b, c, d to answer questions # 2-5.
Louis Pasteur was a famous scientist. As you know when you leave milk out it spoils. When
Pasteur was alive, people thought that certain cows were more likely (than others) to cause milk
spoilage because they produced an inferior type of milk. However Pasteur thought it might have to
do with bacteria. He set up an experiment where he used two glasses of milk. In one of the glasses
he added boiled milk. He discovered that the boiled milk spoiled in 3 days, whereas the un-boiled
milk spoiled in 1 day. He told his colleagues; and when his colleagues tried the experiment, they got
the same results.
a. Independent Variable
b. Dependent Variable
c. Constant
d. Trials
____
2. the type of milk used
____
3. 2 glasses of milk
____
4. how many days until the milk spoiled
____
5. whether the milk is boiled or unboiled
____
6. Which statement about the process of binary fission is true?
a. It does not involve the division of cytoplasm.
b. It does not require any duplication of DNA.
c. It does not take place in multicellular organisms.
d. It does not produce genetically identical offspring.
____
7. 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.
c. too small.
b. just the right size.
d. growing too quickly.
____
8. 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.
Use the pictures of onion root mitosis, below, to answer Q#9-13.
a
b
c
d
e
a. a
b. b
c. c
____
d. d
e. e
9. interphase
____ 10. anaphase
____ 11. metaphase
____ 12. telophase
____ 13. prophase
____ 14. Which organism is capable of reproduction through asexual mitosis?
a. horse
b. oak tree
c. bacterium
d. starfish
____ 15. During which of the following stages shown in Figure 5.1 does the nucleus of a cell divide?
a. gap 1
b. synthesis
____ 16. Growth factors are chemicals that
a. cause apoptosis.
b. control the cell cycle.
c. mitosis
d. cytokinesis
c. cause cancer cells to break away.
d. prevent mitosis.
____ 17. Which statement describes the chromosome shown in Figure 5.2?
a. It is made up of two histones.
c. It is made up of two centromeres.
b. It is made up of two chromatids.
d. It is made up of two telomeres.
____ 18. Identify the structure shown in Figure 6.1.
Fig 6.1
a. protein chain
b. cell membrane
c. glycoprotein
channel
d. nucleic acid
____ 19. During interphase a cell grows, duplicates organelles, and
a. copies DNA.
c. divides the cytoplasm.
b. divides the nucleus.
d. produces a new cell.
____ 20.
What is the correct order of the steps shown during mitosis?
a. a, b, c, d
b. b, c, a, d
c. d, a, c, b
d. b, a, c, d
____ 21. One difference between a cancer cell and a normal cell is that
a. cancer cells divide uncontrollably.
c. cancer cells cannot make copies of DNA.
b. normal cells divide uncontrollably.
d. normal cells can’t make copies of DNA.
____ 22. In a single-celled organism, mitosis is used for
a. development.
b. reproduction.
c. growth.
d. repair.
____ 23. What type(s) of cells divide more quickly than others?
a. prokaryotes.
c. ones that undergo more wear and tear.
b. smaller cells.
d. all choices are correct.
____ 24. Before a cell can proceed to mitosis from the gap 2 stage of the cell cycle, it must
a. double in size.
c. undergo cytokinesis.
b. complete a full cell cycle.
d. contain 2 complete sets of DNA.