Potassium Ion Channels Open ____, Resulting in ____.​

question 19

Multiple Choice

Potassium ion channels open ____, resulting in ____.​

• A) as the action potential passes down the axon; a more negatively charged axon cytoplasm​
• B) ​when the threshold potential is reached; the opening of more sodium channels
• C) ​during the resting potential; the diffusion of sodium ions into the axon cytoplasm
• D) ​when the action potential reaches the axon terminal; a more positively charged axon cytoplasm
• E) ​when neurotransmitters attach to dendrite receptors; no difference in the charge of the axon cytoplasm

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