How Is the Voltage-Sensing Area of a Voltage-Gated Ion Channel

question 15

Multiple Choice

How is the voltage-sensing area of a voltage-gated ion channel seen in a 3D diagram?

• A) A transmembrane segment surrounded by 5 other transmembrane segments
• B) All transmembrane segments except one grouped together
• C) Four transmembrane segments adjacent to each other
• D) One transmembrane segment in the center of 3 other segments
• E) The first and last transmembrane segment of each homologous domain in the center of the structure

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