Which of the following is NOT a passive process? 1)
A) osmosis B) vesicular transport
C) facilitated diffusion D) filtration
vesicular transport
When the solutes are evenly distributed throughout a solution, we say the solution has reached
_______.
2)
A) velocity B) diffusion C) equilibrium D) permeability
equilibrium
Which of the following does NOT describe the plasma membrane? 3)
A) selectively permeable B) differentially permeable
C) semipermeable D) impermeable
impermeable
Which of the following requires a membrane-bound carrier for transport? 4)
A) simple diffusion B) osmosis
C) filtration D) facilitated diffusion
facilitated diffusion
Which of the following solutes would move the fastest? 5)
A) glucose B) albumin C) sodium D) urea
sodium
Which of the following does NOT affect the rate of diffusion through a membrane? 6)
A) the concentration of the solute B) the size of the solute
C) the membrane pore size D) the kinetic energy of the solute
the membrane pore size
In this activity, the solutes were transported through the dialysis membrane by _______. 7)
A) osmosis B) simple diffusion
C) active transport D) facilitated diffusion
simple diffusion
Through which membrane(s) would sodium chloride diffuse? 8)
A) 100 MWCO and 200 MWCO
B) 50 MWCO, 100 MWCO, and 200 MWCO
C) 20 MWCO, 50 MWCO, 100 MWCO, and 200 MWCO
D) 200 MWCO only
50 MWCO, 100 MWCO, and 200 MWCO
Which of the following statements about carrier proteins is FALSE? 9)
A) They might have to change shape slightly to accommodate a solute.
B) They are found integrated into the plasma membrane.
C) They can become saturated if the maximum transport rate is exceeded.
D) They assist in simple diffusion
They assist in simple diffusion
Which of the following statements about facilitated diffusion is FALSE? 10)
A) The movement of a given solute usually occurs in both directions (into and out of the cell).
B) The movement of the solute is passive.
C) The movement of the solute is with its concentration gradient.
D) The movement requires a carrier protein.
The movement of a given solute usually occurs in both directions (into and out of the cell).
Which of the following is NOT a reason why a solute would require facilitated diffusion? 11)
A) The solute is hydrophilic.
B) The solute directly requires ATP for its transport.
C) The solute is too large to pass on its own.
D) The solute is lipid insoluble
The solute directly requires ATP for its transport
Which of the following would increase the rate of facilitated diffusion? 12)
A) increasing the amount of ATP available
B) decreasing the number of carrier proteins
C) increasing the steepness of the concentration gradient
D) decreasing the concentration of solutes
increasing the steepness of the concentration gradien
Simple diffusion and facilitated diffusion both _______. 13)
A) move solutes with their concentration gradient
B) require ATP
C) utilize a membrane-embedded carrier protein
D) move solutes against their concentration gradient
move solutes with their concentration gradient
Which of the following would decrease the rate of facilitated diffusion? 14)
A) decreasing the number of carrier proteins B) decreasing the amount of ATP available
C) increasing the number of carrier proteins D) increasing the amount of ATP available
decreasing the number of carrier proteins
What happens to facilitated diffusion when the protein carriers become saturated? 15)
A) The transport rate will increase.
B) ATP will be utilized for transport.
C) The protein carriers fall apart.
D) The maximum rate of transport will occur.
The maximum rate of transport will occur
What happened when sodium chloride was added as a solute in the left beaker? 16)
A) The transport rate of glucose decreased.
B) Sodium was cotransported with the glucose.
C) The transport rate of glucose increased.
D) There was no change in the transport rate of glucose.
There was no change in the transport rate of glucose.
Which of the following statements about osmosis is FALSE? 17)
A) Water moves toward the solution with the lowest concentration of solutes.
B) It is a type of diffusion.
C) It is passive.
D) It is specific for the movement of water.
Water moves toward the solution with the lowest concentration of solutes.
Hypertonic refers to _______. 18)
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) a solution that will cause a cell to swell
D) the concentration of solutes inside a cell
he concentration of solutes that a cell is bathed in
If a membrane is impermeable to solutes, which of the following is true? 19)
A) Water will move away from the concentrated solutes.
B) Water will move toward the more concentrated solutes.
C) Water and solutes will move until equilibrium is reached.
D) Osmosis will not occur.
Water will move toward the more concentrated solutes.
Osmotic pressure is measured in units of _______. 20)
A) ml/min B) mM/min C) mM/sec D) mm Hg
mm Hg
Which of the following generated osmotic pressure? 21)
A) glucose
B) sodium chloride
C) albumin
D) Sodium chloride, glucose and albumin generated osmotic pressure.
Sodium chloride, glucose and albumin generated osmotic pressure
Which of the following would result in NO change in osmotic pressure? 22)
A) The solutes can diffuse through the pores and the concentration of solutes is the same.
B) The solutes can diffuse through the pores.
C) Water is moving with its concentration gradient.
D) The concentration of solutes is the same on both sides of the membrane.
The solutes can diffuse through the pores and the concentration of solutes is the same.
With the experimental conditions set at the 200 MWCO membrane in place, 10 mM glucose and 9
mM albumin, which of the following is true?
23)
A) Albumin and glucose diffuse through the membrane.
B) The net movement of water is toward the albumin.
C) The net movement of water is away from the albumin.
D) The net movement of water is toward the glucose.
The net movement of water is toward the albumin.
A cell is immersed in a beaker of solution. The cell membrane is permeable to water but
impermeable to solutes. If the intracellular concentration is 10 mM and the solution is 20 mM,
which of the following is true?
24)
A) The net movement of water is into the cell.
B) The cell will shrink.
C) The solution is hypotonic.
D) There is no net change in the movement of water into the cell.
The cell will shrink.
Which of the following is required for filtration? 25)
A) ATP
B) a hydrostatic pressure gradient
C) osmotic pressure
D) a membrane-embedded protein carrier
E) Both a membrane-embedded protein carrier and a hydrostatic pressure gradient are required.
a hydrostatic pressure gradient
In the kidneys, which solutes normally pass through the capillaries? 26)
A) red blood cells
B) glucose
C) white blood cells
D) proteins
E) proteins and glucose
glucose
The presence or absence of a solute in the filtrate depends on _______. 27)
A) the size of the solute
B) the molecular weight of the solute
C) the MWCO of the membrane
D) the pore size of the membrane
E) the molecular weight and size of the solute as well as the MWCO and pore size of the
membrane
the molecular weight and size of the solute as well as the MWCO and pore size of the
membrane
Which of the following resulted in an increase in the filtration rate? 28)
A) increasing the pressure above the beaker
B) increasing the concentration of the solutes
C) increasing the pore size
D) Both increasing the pore size and increasing the pressure above the beaker are correct.
E) Both increasing the pressure above the beaker and increasing the concentration of solutes are
correct.
Both increasing the pore size and increasing the pressure above the beaker are correct.
Which solute did NOT appear in the filtrate using the 200 MWCO membrane? 29)
A) glucose
B) urea
C) sodium chloride
D) charcoal
E) Glucose, charcoal, sodium chloride and urea appeared in the filtrate.
charcoal
Which of the following was NOT observed during this activity? 30)
A) A residue of solutes remained on the membrane after filtration.
B) Increasing the rate of filtration increased the concentration of solutes in the filtrate.
C) Some solutes were too large to pass through the membrane.
D) The 200 MWCO membrane was the largest pore size used.
Increasing the rate of filtration increased the concentration of solutes in the filtrate.
Increasing the pressure above the beaker is analogous to _______. 31)
A) an increase in blood pressure B) an increase in solutes found in the blood
C) a decrease in blood volume D) an increase in heart rate
an increase in blood pressure
Which of the following can be true of both active transport and facilitated diffusion? 32)
A) Cellular energy is required for the transport.
B) Solutes can move against their concentration gradient.
C) Lipid-insoluble solutes can be transported and a carrier protein is required.
D) A carrier protein is required.
E) Lipid-insoluble solutes can be transported.
Lipid-insoluble solutes can be transported and a carrier protein is required
Coupled transporters that move solutes in the same direction are called _______. 33)
A) symporters B) uniporters C) isoporters D) antiporters
symporters
Which of the following describes the concentration of ions when the cell is at rest? 34)
A) The concentration of sodium is higher inside the cell.
B) The concentration of potassium is higher outside the cell.
C) The concentration of potassium and sodium is equal inside and outside the cell.
D) The concentration of potassium is higher inside the cell
The concentration of potassium is higher inside the cell
Which of the following is the driving force for the sodium-potassium pump? 35)
A) a hydrostatic pressure gradient B) ATP hydrolysis
C) a concentration gradient
ATP hydrolysis
The sodium-potassium pump can transport _______. 36)
A) sodium even if potassium is not available
B) only if sodium and potassium are available
C) sodium even if potassium is not available and potassium even if sodium is not available
D) potassium even if sodium is not available
only if sodium and potassium are available
Which of the following increased the rate of sodium-potassium transport? 37)
A) adding glucose to the right beaker
B) increasing the number of membrane pumps
C) increasing the amount of ATP
D) decreasing the amount of ATP
increasing the number of membrane pumps
Which of the following describes the movement of ions by the sodium-potassium pump? 38)
A) Potassium is moved into the cell.
B) Potassium is moved out of the cell and sodium is moved into the cell.
C) Potassium is moved out of the cell.
D) Sodium is moved into the cell.
Potassium is moved into the cell.
What is the type of transport supplied by the glucose carriers in the activity? 39)
A) facilitated diffusion
B) endocytosis
C) active transport
D) exocytosis
E) coupled transport
facilitated diffusion
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