Practice

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1)
 
Hypertonic refers to _______.
 
1)
 
_______
 
A)
 
the concentration of solutes that a cell is bathed in
 
B)
 
a concentration of solutes that is less than the solutes inside the cell  
C)
 
the concentration of solutes inside a cell
 
D)
 
a solution that will cause a cell to swell
 
 
 
2)
 
What happens to facilitated diffusion when the protein carriers become saturated?  
2)
 
_______
 
A)
 
ATP will be utilized for transport.
 
B)
 
The transport rate will increase.
 
C)
 
The protein carriers fall apart.
 
D)
 
The maximum rate of transport will occur.
 
 
 
3)
 
Which of the following statements about carrier proteins is FALSE?  
3)
 
_______
 
A)
 
They can become saturated if the maximum transport rate is exceeded.  
B)
 
They are found integrated into the plasma membrane.
 
C)
 
They assist in simple diffusion.
 
D)
 
They might have to change shape slightly to accommodate a solute.  
 
 
4)
 
Osmotic pressure is measured in units of _______.
 
4)
 
_______
 
A)
 
mm Hg
 
B)
 
ml/min
 
C)
 
mM/sec
 
D)
 
mM/min
 
 
 
5)
 
Which of the following is NOT a passive process?
 
5)
 
_______
 
A)
 
osmosis
 
B)
 
facilitated diffusion
 
C)
 
vesicular transport
 
D)
 
filtration
 
 
 
6)
 
In this activity, the solutes were transported through the dialysis membrane by _______.  
6)
 
_______
 
A)
 
simple diffusion
 
B)
 
osmosis
 
C)
 
active transport
 
D)
 
facilitated diffusion
 
 
 
7)
 
The sodium-potassium pump can transport _______.
 
7)
 
_______
 
A)
 
only if sodium and potassium are available
 
B)
 
sodium even if potassium is not available
 
C)
 
potassium even if sodium is not available
 
D)
 
sodium even if potassium is not available and potassium even if sodium is not available  
 
 
8)
 
Simple diffusion and facilitated diffusion both _______.
 
8)
 
_______
 
A)
 
require ATP
 
B)
 
move solutes against their concentration gradient
 
C)
 
move solutes with their concentration gradient
 
D)
 
utilize a membrane-embedded carrier protein
 
 
 
9)
 
Which solute did NOT appear in the filtrate using the 200 MWCO membrane?  
9)
 
_______
 
A)
 
sodium chloride
 
B)
 
urea
 
C)
 
charcoal
 
D)
 
glucose
 
E)
 
Glucose, charcoal, sodium chloride and urea appeared in the filtrate.  
 
 
10)
 
Which of the following is required for filtration?
 
10)
 
______
 
A)
 
a hydrostatic pressure gradient
 
B)
 
ATP
 
C)
 
a membrane-embedded protein carrier
 
D)
 
osmotic pressure
 
E)
 
Both a membrane-embedded protein carrier and a hydrostatic pressure gradient are required.  
 
 
11)
 
Which of the following requires a membrane-bound carrier for transport?  
11)
 
______
 
A)
 
facilitated diffusion
 
B)
 
filtration
 
C)
 
simple diffusion
 
D)
 
osmosis
 
 
 
12)
 
Increasing the pressure above the beaker is analogous to _______.  
12)
 
______
 
A)
 
an increase in blood pressure
 
B)
 
an increase in heart rate
 
C)
 
a decrease in blood volume
 
D)
 
an increase in solutes found in the blood
 
 
 
13)
 
Which of the following would result in NO change in osmotic pressure?  
13)
 
______
 
A)
 
The solutes can diffuse through the pores.
 
B)
 
Water is moving with its concentration gradient.
 
C)
 
The solutes can diffuse through the pores and the concentration of solutes is the same.  
D)
 
The concentration of solutes is the same on both sides of the membrane.  
 
 
14)
 
Which of the following is NOT a reason why a solute would require facilitated diffusion?  
14)
 
______
 
A)
 
The solute is lipid...
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