This is a clear mind map of Mecanismo de transporte, which mainly illustrates content such as Membrana、Difusion、Transporte activo, etc. Each content is further explained at several levels. This kind of mind map is composed of themes, branches, and keywords. It imitates the neural network structure of the human brain and presents the radioactive structure of the central idea or problem in a graphical way, helping users better understand the content.