This process helps maintain the concentration gradients of sodium and potassium ions across the cell membrane, which is essential for nerve impulse transmission and muscle contraction.
There are two types of secondary active transport: primary active transport secondary active transport
The most well-known example of primary active transport is the sodium-potassium pump (Na+/K+-ATPase), which is present in the plasma membrane of nearly all animal cells. This pump uses ATP energy to transport three sodium ions out of the cell and two potassium ions into the cell, creating a concentration gradient for both ions. This process helps maintain the concentration gradients of