The help with diffusion comes from special proteins in the membrane known as what?
installation proteins
lazy proteins
navigation proteins
transport proteins
Water and many other substances cannot simply diffuse across a membrane. Hydrophilic molecules, charged ions, and relatively large molecules such as glucose all need help with diffusion. The help comes from special proteins in the membrane known as transport proteins . Diffusion with the help of transport proteins is called facilitated diffusion . There are several types of transport proteins, including channel proteins and carrier proteins. Both are shown in Figure below .