The Resting Membrane Potential

question 93

Multiple Choice

The resting membrane potential

• A)occurs because the cell membrane is more permeable to potassium ions than sodium ions.
• B)partly results from the sodium-potassium exchange pump.
• C)occurs because the cell membrane remains polarized at rest.
• D)occurs because there are negatively charged proteins and ions inside the cell.
• E)has all of these contributing factors.

---

Definitions:

Radiation

The release or conveyance of energy as waves or particles across space or within a material medium.

Archaean Eon

The period of Earth’s history from the formation of the crust approximately 4 billion years ago, until 2.5 billion years ago; life originated during the Archaean.

Oceanic Trenches

Deep, narrow depressions in the ocean floor, formed by the subduction of one tectonic plate under another.

Polar Regions

Areas surrounding the Earth's geographical poles, characterized by extreme cold and seasonal variations in daylight.