Final answer:
The Nernst equation is a mathematical equation used to estimate the equilibrium potential of an ion across a cell membrane. It predicts the movement of ions and influences ion channel activity. It is important for calculating resting membrane potentials and understanding ion distribution in cells.
Step-by-step explanation:
The Nernst equation is a mathematical equation that can be used to estimate the equilibrium potential of an ion across a cell membrane. It takes into account the concentration gradient of the ion and the temperature of the system.
The equation can be used to predict the movement of ions and influence ion channel activity. Additionally, it is important for calculating resting membrane potentials and understanding the distribution of ions in cells.