BIOL 2021 Lecture Notes - Lecture 4: Acetyl-Coa, Oxidizing Agent, Citric Acid Cycle
Document Summary
How cells acquire, transform, store and use energy. Study reactions in a cell and how these processes are coordinated and regulated. Metabolic pathways can be linear, branched, cyclic or spiral. Multienzyme systems arranged into different metabolic pathways: enzymes loosely held together. Diffusion of intermediates to other enzyme: multienzyme complex tightly associated. Intermediates channeled from one active site to the other: multienzyme system in a membrane. Catabolism: degradative pathway: generating energy from macronutrients, formation of nadh, fadh2 and atp. Nadh and fadh2 are used to make atp. Anabolism: biosynthesis: synthesizing molecules and polymers that make up the cell. Reactions: metabolism includes all enzyme reactions, metabolism can be subdivided into branches, the metabolism of two of the four major groups of biomolecules will be considered: Amino acids and: the atp energy cycle, energy derived from metabolic fuels is largely recovered in the form of atp, pathways of catabolism release free energy that is captured as atp.
