An Inhibitory Postsynaptic Potential

question 34

Multiple Choice

An inhibitory postsynaptic potential:

• A) is produced by simultaneous increases in permeability to both Na⁺ and K⁺.
• B) occurs when a ligand-gated ion channel increases its permeability to K⁺.
• C) is a small depolarization in a postsynaptic cell.
• D) can be summed with other IPSPs to trigger an action potential in the postsynaptic cell.
• E) is produced by an increase in permeability to only Na⁺.

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