Virtually all vertebrate cells, whether excitable or not, have a resting membrane potential (RMP). please choose the right answer fro C1 C2 C3 and C4 C. Suppose you add enough KCl to increase the [K+] in the ECF from the usual value (3 mM) to 4.5 mM. What should happen to a neuron? C-1. You expect the RMP to become (+ or more +) (- or more -) (less -) (less +) (go to, or stay at, zero) (stay at the normal nonzero value). C-2. You expect the total number of K+ ions inside the cell to (increase) (decrease) (stay about the same). C-3. You expect the net [K+] inside the cell -- in mM -- to (increase significantly) (decrease significantly) (stay about the same).
Virtually all vertebrate cells, whether excitable or not, have a resting membrane potential (RMP).
please choose the right answer fro C1 C2 C3 and C4
C. Suppose you add enough KCl to increase the [K+] in the ECF from the usual value (3 mM) to 4.5 mM. What should happen to a neuron?
C-1. You expect the RMP to become (+ or more +) (- or more -) (less -) (less +) (go to, or stay at, zero) (stay at the normal nonzero value).
C-2. You expect the total number of K+ ions inside the cell to (increase) (decrease) (stay about the same).
C-3. You expect the net [K+] inside the cell -- in mM -- to (increase significantly) (decrease significantly) (stay about the same).
C-4. Suppose the neuron under consideration gets input from many different synapses. You increase the [K+] in the ECF as above. Given your answer to part C-1, the neuron should be (more likely) (less likely) (about equally likely) to fire an action potential. No explanation required on the exam, but it helps to see how you were thinking about your answers.
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