Lehninger PRINCIPLES of BIOCHEMISTRY Seventh Edition
13 |Bioenergetics and Biochemical Reaction Types
O 2017 W. H. Freeman and Company
David L.Nelson Michael M.Cox
11/7.122
CHAPTER 13
Bioenergetics and Biochemical Reaction Types Learning goals: Thermodynamic logic of metabolic pathways Common organic chemistry principles in biochemistry Some biomolecules are "high energy" with respect to their hydrolysis and group transfers. Energy stored in reduced organic compounds can be used to reduce cofactors such as NAD+ and FAD which serve as universal electron carriers.
Life Needs Energy
Recall that living organisms are built of complex structures.
Building complex structures that are low in entropy is only possible when energy is spent in the process.
The ultimate source of this energy on Earth is sunlight
Photosynthetic autotrophs
Heterotrophs
CO2
HO