Question

question 28 1 pts when a neuron is resting, the inner surface of its plasma membrane is slightly positive compared with its outer surface. false true question 29 1 pts the magnitude of the action potential peaks when the sodium channels close. false true question 30 1 pts if the magnitude of the local depolarization surpasses a limit called the _____, voltage - gated na+ channels are stimulated to open. action potential local potential threshold potential resting potential

Explanation:

• For Question 28: In a resting neuron, the inner - surface of the plasma membrane is negatively charged compared to the outer surface due to the distribution of ions like potassium, sodium, and negatively - charged proteins.
• For Question 29: The magnitude of the action potential peaks when sodium channels open and sodium ions rush into the cell, not when they close.
• For Question 30: When the magnitude of local depolarization surpasses the threshold potential, voltage - gated Na+ channels are stimulated to open, initiating an action potential.

Answer:

Question 28: A. False
Question 29: A. False
Question 30: C. threshold potential