Membrane Potential Quiz

Membrane potential is related to the energy required for electric charges to move from the internal to exterior cellular environments and vice versa.

Membrane potential is the difference in electric potential between the interior and the exterior of a biological cell.

The concentration gradients of the charges directly determine the energy requirement for membrane potential.

<p>Transmembrane proteins actively push ions across the membrane and establish concentration gradients.</p> Signup and view all the answers

<p>The typical values of membrane potential in animal cells range from –80 mV to –40 mV.</p> Signup and view all the answers

<p>The lipid bilayer serves as both an insulator and a diffusion barrier to the movement of ions.</p> Signup and view all the answers

<p>Transmembrane proteins, also known as ion transporter or ion pump proteins, actively push ions across the membrane and establish concentration gradients.</p> Signup and view all the answers

<p>The concentration gradients of the charges directly determine the energy required for electric charges to move from the internal to exterior cellular environments and vice versa.</p> Signup and view all the answers

<p>Typical values of membrane potential in animal cells range from –80 mV to –40 mV and are normally given in units of milli volts (mV).</p> Signup and view all the answers

<p>All animal cells are surrounded by a membrane composed of a lipid bilayer with proteins embedded in it.</p> Signup and view all the answers