Which ion is primarily responsible for the depolarization phase of an action potential? (2023)

Practice Questions

1 question
Q1
Which ion is primarily responsible for the depolarization phase of an action potential? (2023)
  1. Sodium (Na+)
  2. Potassium (K+)
  3. Calcium (Ca2+)
  4. Chloride (Cl-)

Questions & Step-by-step Solutions

1 item
Q
Q: Which ion is primarily responsible for the depolarization phase of an action potential? (2023)
Solution: Sodium ions (Na+) rush into the neuron during depolarization, causing the membrane potential to become more positive.
Steps: 0

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