Q: The help with diffusion comes from special proteins in the membrane known as what?


Read this paragraph and choose the correct option from the provided answers:

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 .

 Choices:

- lazy proteins

- navigation proteins

- installation proteins

- transport proteins


A:
transport proteins