Skip to main content
United States
Jump To
Support
Register or Log In
Support
Register or Log In
Instructors
Browse Products
Getting Started
Students
Browse Products
Getting Started
Chapter 5 Quiz
Return to Animal Physiology 4e Student Resources
Chapter 5 Quiz
Quiz Content
*
not completed
.
In the Fick equation,
J
measures
the total diffusion.
correct
incorrect
the rate of diffusion.
correct
incorrect
the net rate of diffusion.
correct
incorrect
concentration.
correct
incorrect
*
not completed
.
Which of the following is
not
a variable in the Fick equation?
Distance separating regions of high and low concentration
correct
incorrect
Concentration difference
correct
incorrect
Diffusion coefficient
correct
incorrect
Charge
correct
incorrect
*
not completed
.
According to the Fick equation, what happens to
J
when
X
(the distance between the two concentrations) is increased?
The net rate of diffusion decreases
correct
incorrect
The concentration increases
correct
incorrect
The net rate of diffusion increases
correct
incorrect
The diffusion coefficient increases
correct
incorrect
*
not completed
.
Boundary layers tend to
increase the net rate of diffusion.
correct
incorrect
decrease the net rate of diffusion.
correct
incorrect
affect permeability only.
correct
incorrect
increase the local rate of diffusion but not the net rate of diffusion.
correct
incorrect
*
not completed
.
Electrical charges on molecules _______ diffusion across a membrane.
play a large role in
correct
incorrect
play an insignificant role in
correct
incorrect
accelerate
correct
incorrect
inhibit
correct
incorrect
*
not completed
.
Which of the following is
not
a type of gated channel?
Voltage-gated
correct
incorrect
Phosphorylation-gated
correct
incorrect
Ion-gated
correct
incorrect
Ligand-gated
correct
incorrect
*
not completed
.
In a typical animal cell, K
+
tends to leak
into the cell due to its electrical gradient.
correct
incorrect
into the cell due to its concentration gradient.
correct
incorrect
out of the cell due to its electrical gradient.
correct
incorrect
out of the cell due to its concentration gradient.
correct
incorrect
*
not completed
.
A membrane that is permeable to only Na
+
separates two solutions. The initial solutions are a 1-
M
solution of K
+
on the left side of the membrane and a 1-
M
solution of Na
+
on the right side. What will occur?
Na
+
will diffuse to the left side of the membrane, causing a net positive charge on the right side.
correct
incorrect
Na
+
will diffuse to the left side of the membrane, causing a net negative charge on the right side.
correct
incorrect
Na
+
will diffuse to the left side of the membrane, but there will be no separation of charges.
correct
incorrect
The movement of Na
+
will be balanced out by the movement of K
+
; therefore, there will be no net charge difference.
correct
incorrect
*
not completed
.
A membrane that is permeable to Na
+
and K
+
separates two solutions. The initial solutions are a 1-
M
solution of K
+
on the left side of the membrane and a 1
M
solution of Na
+
on the right side. What will occur?
Na
+
will diffuse to the left side of the membrane, causing a net positive charge on the right side.
correct
incorrect
Na
+
will diffuse to the left side of the membrane, causing a net negative charge on the right side.
correct
incorrect
Na
+
will diffuse to the left side of the membrane and K
+
will not diffuse; however, there will be no separation of charges.
correct
incorrect
The movement of Na
+
will be balanced out by the movement of K
+
; therefore, there will be no net charge difference.
correct
incorrect
*
not completed
.
Which statement about facilitated diffusion is true?
It always occurs in the direction of electrochemical equilibrium.
correct
incorrect
It is a form of active transport.
correct
incorrect
Energy is used by the proteins in the transport process.
correct
incorrect
Solutes transported by this mechanism move across membranes much more slowly than they would if they did not associate with transporter proteins.
correct
incorrect
*
not completed
.
The proton pump in the stomach is an example of a(n) _______ pump.
electroneutral
correct
incorrect
electrogenic
correct
incorrect
glucose-mediated
correct
incorrect
facilitated
correct
incorrect
*
not completed
.
Na
+
–K
+
-ATPase pumps _______ the cell while _______ the cell.
2 Na
+
out of; pumping 3 K
+
into
correct
incorrect
3 Na
+
into; pumping 2 K
+
out of
correct
incorrect
3 Na
+
out of; pumping 2 K
+
into
correct
incorrect
2 Na
+
into; pumping 3 K
+
out of
correct
incorrect
*
not completed
.
Which is the best description of the immediate process by which glucose is transported across the epithelial membrane of the small intestine?
Active transport using Na
+
correct
incorrect
Cotransport with K
+
correct
incorrect
Active transport using ATP
correct
incorrect
Cotransport with Na
+
correct
incorrect
*
not completed
.
According to the whole-epithelium view of the gill, how does Cl
–
enter the gill membrane of a freshwater teleost fish?
Passive countertransport with HCO
3
–
correct
incorrect
Passive cotransport with Na
+
correct
incorrect
Active countertransport with HCO
3
–
correct
incorrect
Active cotransport with HCO
3
–
correct
incorrect
*
not completed
.
Energy is used by _______ when bringing glucose into the intestinal epithelial cell.
Na
+
–K
+
-ATPase
correct
incorrect
the Na
+
-glucose cotransporter
correct
incorrect
Na
+
–H
+
-ATPase
correct
incorrect
the K
+
-glucose cotransporter
correct
incorrect
*
not completed
.
Which of the following is
not
a probable method of modulating channel or transporter function?
The existence of multiple molecular forms of the same channel or transporter
correct
incorrect
Control of the tissue-level expression of channels or transporters by gene expression
correct
incorrect
Blocking or permanent disabling of channels or transporters by ligands
correct
incorrect
Insertion or removal of channels or transporters from the plasma membrane
correct
incorrect
*
not completed
.
The colligative properties of an aqueous solution are the properties that depend on the
concentration of non-ionic particles dissolved in solution.
correct
incorrect
number of dissolved entities per unit volume.
correct
incorrect
number of dissolved entities per unit volume as well as their chemical nature.
correct
incorrect
concentration of ions dissolved in solution.
correct
incorrect
*
not completed
.
A 5 m
Osm
solution behaves as if it has
5 Avogadro's number of independent dissolved entities per liter.
correct
incorrect
5
M
of dissolved nonionic entities.
correct
incorrect
5 m
M
dissolved nonionic entities.
correct
incorrect
0.005 Avogadro's number of independent dissolved entities per liter.
correct
incorrect
*
not completed
.
The passive transport of water across a membrane is called
osmotic pressure.
correct
incorrect
osmosis.
correct
incorrect
diffusion.
correct
incorrect
ultrafiltration.
correct
incorrect
*
not completed
.
The blood plasma of a freshwater teleost fish is _______ relative to the pond water in which it lives.
isotonic
correct
incorrect
isosmotic
correct
incorrect
hyposmotic
correct
incorrect
hyperosmotic
correct
incorrect
Previous Question
Submit Quiz
Next Question
Reset
Exit Quiz
Review all Questions
Submit Quiz
Are you sure?
You have some unanswered questions. Do you really want to submit?
Back to top
Printed from , all rights reserved. © Oxford University Press, 2024
Select your Country