History...VITALISM 神秘莫测的力 Vital force theory:生命力学说 Compounds such as sugar,urea,starch,waxes, and plant oils were considered“organic” -People believed that...... Organic compounds needs a"vital force"to create them -Vitalism was the belief that certain chemicals, ORGANIC CHEMICALS,could only be made by living organisms.History… VITALISM 神秘莫测的力 Vital force theory:生命力学说  Compounds such as sugar, urea, starch, waxes, and plant oils were considered “organic”  People believed that……  Organic compounds needs a “vital force” to create them  Vitalism was the belief that certain chemicals, ORGANIC CHEMICALS, could only be made by living organisms