Biochemistry l Metabolism: The degrada and synthesis of biomolecules by Professor Zengyi Chang(昌增益教授) Tel:6277-2251 E-mail:changzy(@mail.tsinghua.edu.cn
Biochemistry II --Metabolism: The degradation and synthesis of biomolecules. by Professor Zengyi Chang (昌增益教授） Tel: 6277-2251 E-mail: changzy@mail.tsinghua.edu.cn
1. An Overview of metabolism
1. An Overview of Metabolism
1. I The Definition of metabolism The highly integrated network of chemical transformations Degradation(decreasing order, thus energy releasing) to provide energy, catabolism; Synthesis (increasing order, thus energy consuming) to provide building materials anabolism
1.1 The Definition of Metabolism • The highly integrated network of chemical transformations. • Degradation (decreasing order, thus energy releasing) to provide energy, catabolism; • Synthesis (increasing order, thus energy consuming) to provide building materials, anabolism
Energy-yielding Cell nutrients macromolecules Carbohydrates Proteins Fats Polysaccharides Proteins Lipids Nucleic acids ADP HPOZ NAD The energy supply NADP and demand in Catabolism Anabolism ATP NADH NADPH Heterotrophs Chemical energy the ATP-ADP cycle Energy.poor Precursor end products molecules Amino acids Sugars Fatty acids Nitrogenous ase
The energy supply and demand in Heterotrophs: the ATP-ADP cycle
1.2 The roles of metabolism Extract energy and reducing power from the environment (photosynthesis and oxidative degradation of nutrients) Generation (interconversion) of all the biomolecules(small and large) for a living organism(biosynthesis)
1.2 The Roles of metabolism • Extract energy and reducing power from the environment (photosynthesis and oxidative degradation of nutrients); • Generation (interconversion) of all the biomolecules (small and large) for a living organism (biosynthesis)