Can someone please help me solve these questions?

3. We should start with the simplest model and build in more complexity as needed.

a. What stages does a cell move through to create the action potential? Let's

create the first step, the resting potential. What does this circuit look like?

b. Okay, but we also need the potential to be able to change too. How can we

incorporate that?

c. Now comes the tough part. We need to build a circuit that starts at rest, then

depolarize, then hyperpolarizes at reasonable values.

4. Using the Model: Consider the scenarios below. What are the results of those changes?

What does this translate to in an actual cell?

a. A person is dehydrated so that the outside concentrations of all the ions are

increased by 20%.

b. A toxin is introduced that causes the cell membrane to be less permeable to

potassium by 50%.

c. A person takes a low salt diet to the extreme so that both the inside and outside

concentrations of sodium are reduced by 25%.