👉 Bifidate is a type of protein that consists of two identical, but different, domains. These domains are called a single polypeptide chain and they can be found within proteins that perform specific functions like transport or signal transduction. In biological terms, a "bifidate" refers to the structure of the cell membrane, which is composed of a single layer of proteins called the plasma membrane. This membrane acts as a barrier between the inside of the cell (the cytoplasm