The voltage across a membrane is called the _____.Group of answer choiceselectrochemical gradientmembrane potentialchemical gradientosmotic potentialNext

The voltage across a membrane is called the membrane potential.

Explanation

Membrane potential refers to the difference in electric potential across a cell membrane, which is essential for various cellular functions, including the conduction of electrical signals in nerve and muscle cells. It typically reflects the distribution of ions across the membrane and can be influenced by factors such as ion channels and transporters.

In contrast:

• Electrochemical gradient refers to the combined effect of the concentration gradient and the electrical gradient of ions across the membrane.
• Chemical gradient pertains only to the concentration differences of substances across the membrane.
• Osmotic potential relates to the tendency of water to move due to solute concentrations and is not directly related to voltage.

In summary, the correct term specifically describes the voltage aspect is "membrane potential."