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Cahpter 8 Test B

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

 1. 

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

 2. 

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

 3. 

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

 4. 

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

 5. 

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

 6. 

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

 7. 

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

 8. 

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

 9. 

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
 

 10. 

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

 11. 

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

 12. 

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

 13. 

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

 14. 

What level of organization is shown in Figure 8-7?
cahpter_8_test_b_files/i0150000.jpg
a.
organ system
c.
organ
b.
tissue
d.
organism
 

 15. 

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 cells to the sugar solution
d.
pass from the sugar solution to the cells
 
 
cahpter_8_test_b_files/i0170000.jpg
Figure 8-8
 

 16. 

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

 17. 

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

 18. 

Which conditions shown in Figure 8-4 might cause a cell to burst?
cahpter_8_test_b_files/i0200000.jpg
Figure 8-4
a.
B
c.
D
b.
C
d.
A
 

 19. 

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

 20. 

What cell process is responsible for the effect shown in Figure 8-5?
cahpter_8_test_b_files/i0220000.jpg
Figure 8-5
a.
active transport
c.
facilitated diffusion
b.
passive transport
d.
osmosis
 

 21. 

The chromosomes shown in Figure 8-6 are in which state of mitosis?
cahpter_8_test_b_files/i0230000.jpg
Figure 8-6
a.
anaphase
c.
prophase
b.
metaphase
d.
telophase
 

 22. 

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

 23. 

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

 24. 

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

 25. 

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

 26. 

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



 
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