Name: 
 

Chapter 8 Study Questions



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Water moves into a cell placed in a(n) _____ solution.
a.
osmotic
c.
hypotonic
b.
hypertonic
d.
isotonic
 

 2. 

Water moves out of a cell if the cell is placed in a(n) _____ solution.
a.
hypertonic
c.
hypotonic
b.
isotonic
d.
passive
 

 3. 

If cells are placed in a strong sugar solution, water will _____.
a.
pass from the sugar solution to the cells
b.
pass from the cells to the sugar solution
c.
stay in the cell
d.
pass back and forth
 

 4. 

A cell moves particles from a region of lesser concentration to a region of greater concentration by _____.
a.
facilitated diffusion
c.
osmosis
b.
passive transport
d.
active transport
 

 5. 

If a cell is placed in salt water, water leaves the cell by _____.
a.
osmosis
c.
active transport
b.
diffusion
d.
phagocytosis
 

 6. 

Which of the following is not a form of passive transport?
a.
facilitated diffusion
c.
facilitated diffusion
b.
endocytosis
d.
osmosis
 

 7. 

The structure most responsible for maintaining cell homeostasis is the _____.
a.
cytoplasm
c.
cell wall
b.
mitochondrion
d.
plasma membrane
 

 8. 

The causes of cancer may include which of the following?
a.
environmental influences
c.
viruses
b.
UV radiation
d.
all of the above
 

 9. 

A gene is a segment of DNA that controls the production of _____.
a.
carbohydrates
c.
centromeres
b.
microtubules
d.
proteins
 

 10. 

Which of the following monitors a cell's progress from phase to phase during the cell cycle?
a.
a series of enzymes
c.
lipid molecules
b.
microtubules
d.
protein molecules
 

 11. 

If the sides of a cell double in length, its volume increases by _____ times.
a.
two
c.
six
b.
four
d.
eight
 

 12. 

If the sides of a cell double in length, its surface area becomes _____ times as large.
a.
two
c.
six
b.
four
d.
eight
 

 13. 

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
 

 14. 

As a cell grows, its _____ increases more than its _____.
a.
length, volume
c.
volume, surface area
b.
width, surface area
d.
none of these
 

 15. 

Among the following, the term that includes the others is _____.
a.
interphase
c.
mitosis
b.
nuclear division
d.
cell cycle
 

 16. 

By the end of prophase, each of the following has occurred except _____.
a.
tighter coiling of the chromosomes
b.
breaking down of the nuclear envelope
c.
disappearing of the nucleolus
d.
lining up of chromosomes in the cell
 

 17. 

Unlike plant cells, animal cells contain _____.
a.
cell walls
c.
nucleoli
b.
centrioles
d.
spindles
 

 18. 

The longest phase of the cell cycle is _____.
a.
prophase
c.
metaphase
b.
interphase
d.
mitosis
 

 19. 

A chromatid is attached to a spindle fiber by the _____.
a.
nucleolus
c.
centromere
b.
deep furrow
d.
centriole
 

 20. 

Which of the following structures is the most complex?
a.
cell
c.
organ
b.
organ system
d.
tissue
 

 21. 

Which conditions shown in Figure 8-4 might cause a cell to burst?
chapter_8_study_que_files/i0220000.jpg
Figure 8-4
a.
A
c.
C
b.
B
d.
D
 

 22. 

What cell process is responsible for the effect shown in Figure 8-5?
chapter_8_study_que_files/i0230000.jpg
Figure 8-5
a.
active transport
c.
facilitated diffusion
b.
passive transport
d.
osmosis
 

 23. 

The chromosomes shown in Figure 8-6 are in which state of mitosis?
chapter_8_study_que_files/i0240000.jpg
Figure 8-6
a.
prophase
c.
anaphase
b.
metaphase
d.
telophase
 

 24. 

What level of organization is shown in Figure 8-7?
chapter_8_study_que_files/i0250000.jpg
a.
tissue
c.
organ system
b.
organ
d.
organism
 
 
chapter_8_study_que_files/i0260000.jpg
Figure 8-8
 

 25. 

Which of the cells depicted in the line graph in Figure 8-8 are most likely cancerous?
a.
A
c.
C
b.
B
d.
D
 

 26. 

If cancer is present, what is the likely explanation for what happened to cells B and D?
a.
they thrived with the cancerous cells
b.
they were harmed by radiation therapy
c.
they died off on due to natural causes
d.
they died off because the cancerous cells deprived them of nutrients
 



 
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