Questions with Answers & Rationales) Actual
Exam (Latest Update 2026\2027) Questions &
Answers with Rationales| 100% Correct |
Grade.
Which of the following the pump is open to both the ECF and ICF
statements about the simultaneously, to allow both Na+ and K+ to move in
Na+/K+ pump is FALSE? their respective directions
a) three sodium ions are
moved out of the cell per
ATP
b) It is a form of active
transport
c) the pump is open to both
the ECF and ICF
simultaneously, to allow
both Na+ and K+ to move
in their respective
directions
d) the pump has built in
enzyme activity
e) it is present in the cell
membrane of every cell
of the human body
,Which of the following is in certain cells, the phospholipids arrange themselves
NOT true of the cell into the shape of a channel, in order to allow ions to
membrane transport across the membrane
a) Cholesterol influences
how fluid the membrane
is
b) Carbohydrates associate
with proteins and lipids on
the extracellular side of the
membrane
c) there are many
different kinds of
membrane proteins
d) in certain cells, the
phospholipids
arrange themselves into the
shape of a
channel, in order to allow ions
to transport across the
membrane
,The isolation of different tight junctions
proteins to the
luminal vs. basolateral
surfaces of epithelial cells is
due to the presence of
____________ between the
cells in the tissue
a) desmosomes
b) a pump
c) tight junctions
d) gap junctions
the GLUT family of molecules carrier proteins for the facilitated diffusion of glucose
are:
a) channel proteins through
which glutamic acid can
travel
b) carrier proteins for
the facilitated
diffusion of glucose
c) channel proteins through
which glucose can diffuse
d) secondary active
transport carriers, for
moving both glucose and
sodium
e) more than one of the above
is correct
Alcohol crosses the cell high partition coefficient
membranes in nerve
tissue relatively easily.
Therefore alcohol has a:
a) high partition coefficient
b) low partition coefficient
, Assuming that a substance the number of carriers in the membrane increases
is uncharged and is
transported across a
membrane by facilitated
diffusion carriers, according
to Fick's Law, the net
movement of the
substance will tend to
increase as:
a) the membrane surface area
decreases
b) the magnitude of the
concentration gradient
decreases
c) the number of carriers in
the membrane increases
d) the thickness of the
membrane surface
increases
e) more than one of the above
is correct
Which of the following channel protein
transport processes is the
least likely to get
saturated?
a) channel protein
b) facilitated diffusion
c) primary active transport
d) secondary active transport