PSL 425 - Final Exam UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS
what net direction will an anion move when the the anion will exit the cell
membrane potential is -60 mV, the equilibrium potential
for the anion is -50 mV, and give a permeable membrane
, the equilibrium potential for a hypothetical negative ion outward current
(X-) is -35 mV and there is more X- externally than
internally. There is an inward current when the membrane
voltage is -50 mV and an outward current when the
membrane voltage is 50 mV. which current would have
the greater magnitude
the non-physiological IV curve is the current predicted [X+] higher inside than outside
by the GHK current equation assuming that the
membrane is perfectly selective for the hypothetical ion
X+. what concentrations of X+ would give rise to this IV
curve
what would happen to the equilibrium potential of hyperpoalrize
potassium if the extracellular potassium concentration
decreased
for equilibrium to occur what must happen the net flux must be zero
when sodium is in equal concentrations on either side of only when the membrane voltage is zero
the membrane, when can sodium equilibrium occur
what mainly determines the resting membrane potential potassium gradient
of a mammalian membrane
what net direction will a cation move when the the cation will enter the cell
membrane potential is -60 mV, the equilibrium potential
for the cation is 75 mV, and given a permeable membrane
the non-physiological IV curve below is the current inward current
predicted by the GHK current equation assuming that the
membrane is perfectly selective for the hypothetical ion
X-
- if the cell's membrane voltage is -100 mV what direction
is the current generated by X-
the net outward flow of chloride would best be describe inward current
as a(n)
calculate the equilibrium for potassium given the -86 mV
following parameters
T = 32°C = 305.16 K
R = 8.3145 J mol-1 K-1
F = 96.485 C mol-1
extracellular concentration [K+] = 5 mM
intracellular concentration [K+] = 130 mM
membrane voltage (Vm) = -50 mV
when a substance is uncharged, as in the case of glucose, only when the concentration is equal on the two sides of the membrane
when can equilibrium occur
what net direction will an anion move when the the anion will exit the cell
membrane potential is -60 mV, the equilibrium potential
for the anion is -50 mV, and give a permeable membrane
, the equilibrium potential for a hypothetical negative ion outward current
(X-) is -35 mV and there is more X- externally than
internally. There is an inward current when the membrane
voltage is -50 mV and an outward current when the
membrane voltage is 50 mV. which current would have
the greater magnitude
the non-physiological IV curve is the current predicted [X+] higher inside than outside
by the GHK current equation assuming that the
membrane is perfectly selective for the hypothetical ion
X+. what concentrations of X+ would give rise to this IV
curve
what would happen to the equilibrium potential of hyperpoalrize
potassium if the extracellular potassium concentration
decreased
for equilibrium to occur what must happen the net flux must be zero
when sodium is in equal concentrations on either side of only when the membrane voltage is zero
the membrane, when can sodium equilibrium occur
what mainly determines the resting membrane potential potassium gradient
of a mammalian membrane
what net direction will a cation move when the the cation will enter the cell
membrane potential is -60 mV, the equilibrium potential
for the cation is 75 mV, and given a permeable membrane
the non-physiological IV curve below is the current inward current
predicted by the GHK current equation assuming that the
membrane is perfectly selective for the hypothetical ion
X-
- if the cell's membrane voltage is -100 mV what direction
is the current generated by X-
the net outward flow of chloride would best be describe inward current
as a(n)
calculate the equilibrium for potassium given the -86 mV
following parameters
T = 32°C = 305.16 K
R = 8.3145 J mol-1 K-1
F = 96.485 C mol-1
extracellular concentration [K+] = 5 mM
intracellular concentration [K+] = 130 mM
membrane voltage (Vm) = -50 mV
when a substance is uncharged, as in the case of glucose, only when the concentration is equal on the two sides of the membrane
when can equilibrium occur
