Name:     ID: 
 
    Email: 

Chapter 8 Test A

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 
 
chapter_8_test_a_files/i0020000.jpg
Figure 8-8
 

 1. 

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 thrived with the cancerous cells
d.
they died off because the cancerous cells deprived them of nutrients
 

 2. 

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

 3. 

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

 4. 

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

 5. 

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 sugar solution to the cells
d.
pass from the cells to the sugar solution
 

 6. 

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

 7. 

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

 8. 

What cell process is responsible for the effect shown in Figure 8-5?
chapter_8_test_a_files/i0100000.jpg
Figure 8-5
a.
active transport
c.
osmosis
b.
facilitated diffusion
d.
passive transport
 

 9. 

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

 10. 

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

 11. 

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

 12. 

Which conditions shown in Figure 8-4 might cause a cell to burst?
chapter_8_test_a_files/i0140000.jpg
Figure 8-4
a.
B
c.
A
b.
C
d.
D
 

 13. 

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

 14. 

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

 15. 

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

 16. 

What level of organization is shown in Figure 8-7?
chapter_8_test_a_files/i0180000.jpg
a.
organ
c.
tissue
b.
organ system
d.
organism
 

 17. 

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

 18. 

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

 19. 

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

 20. 

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

 21. 

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

 22. 

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

 23. 

The chromosomes shown in Figure 8-6 are in which state of mitosis?
chapter_8_test_a_files/i0250000.jpg
Figure 8-6
a.
metaphase
c.
telophase
b.
prophase
d.
anaphase
 

 24. 

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

 25. 

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

 26. 

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
 



 
Submit          Reset Help