Membrane transport proteins

Membrane transport proteins are specialized proteins embedded in cell membranes that control what enters and exits the cell. They function like gates or channels, facilitating the movement of molecules such as nutrients, ions, and waste products. These proteins help maintain the cell’s internal environment and ensure proper cell function by allowing essential substances in while removing unwanted ones. Some transport proteins require energy to work (active transport), while others move substances passively along concentration gradients. Overall, they are vital for cell survival, communication, and homeostasis.