Which effect is greater for Na when it is in electrochemical equilibrium the electrical or concentration gradient??

You are considering transport of Fe3+ out of a biological cell with a membrane potential of -60 mV. What is the value for delta psi in this case? (Make sure you express this value in proper units, i.e., as you would enter this value into the change in free energy of transport equation.)

8. The cartoon at the right depicts a hypothetical cell that has a Lit-K* ATPase (shown as the filled circle with arrows). The cell also contains Lit and K* channels. The membrane is three times more permeable to K* than it is to Li*. The following are the steady state concentrations of Li* and K*: [Li*]out = 100 mM [Li*]in = 5 mM [K*]out = 4 mM Lit ADP + P, ATP [K*lin = 80 mM = 10°C Temp = Assuming that the Vm is produced only by the diffusion of Li* and K*, calculate the Vm.

Considering this graph of membrane potential, what is most likely occurring during the period indicated by the green box?

Part B → you were dealing with an uncharged molecule rather than an ion, would your answer for part A be higher or lower, assuming all other conditions remained the same? Explain Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used. Submit Provide Feedback, 포 would higher would not lower the same Request Answer The actual value for an uncharged molecule would be the membrane potential 8 be reduced much more because the ATP-driven pumping Reset Help since the internal concentration have to fight