Superoxide dismutase (SOD) is a kind ofmetalloenzyme, which existswidely in the body ofaerobionts and plays an importantrole. SOD can clear away the excessiveO·-2produced inmetabolic process oforganism. Moreover, ithas functions ofpreventing disease, delaying the aging ofhuman body, and improving the bodys' immunity.

Porphyrin andmetalloporyrin playmore andmore importantroles and havewide applications in biomimetic chemistry, catalysis, utilization ofsolar energy, special typematerials, medicine and analytical chemistry etc. In this paper, brief introduction is give.

In the Teaching activities of scientific inquiry, more attention should be paid to students' participation in different type scientific inquiry. The special functions of every inquiry activity are significant to deepening inquiry activity and improving scientific literacy of student.Simultaneously, the inquirymode of different type inquiry is also different.