Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The resting membrane potential refers to the voltage difference across the membranes of excitable cells at rest.

The resting membrane potential is the electrical potential difference across the plasma membrane of a cell when it is not actively sending signals. Typically measured in millivolts (mV), this potential is primarily determined by the distribution of ions, particularly sodium (Na+) and potassium (K+), across the membrane. In excitable cells, such as neurons and muscle cells, the resting membrane potential is crucial for the generation of action potentials.

Excitable cells are specialized cells, such as neurons and muscle fibers, that can rapidly change their membrane potential in response to stimuli. This ability allows them to conduct electrical signals, which is essential for processes like muscle contraction and nerve impulse transmission. The resting membrane potential in these cells is vital for maintaining their excitability and readiness to respond to stimuli.

Voltage difference, or electrical potential difference, refers to the difference in electric charge between two points, which in the context of cells, is measured across the cell membrane. This difference is crucial for the function of excitable cells, as it influences the movement of ions in and out of the cell, thereby affecting cellular activities such as signaling and contraction. Understanding this concept is key to grasping how cells communicate and respond to their environment.