BSC 2010 Chapter Notes - Chapter 8: Metabolic Pathway, Thermal Energy, Endergonic Reaction
27 Aug 2016
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Document Summary
Metabolism: totality of an organism"s chemical reactions, consists of 2 types of pathways. Catabolic pathway: breakdown of complex molecules into simpler compounds, release of energy, digestion, cellular respiration. Anabolic pathway: also called biosynthetic pathways, simpler molecules complicated molecules, consumes energy, polymerization, synthesis, photosynthesis. Metabolic pathways: begin with a specific molecule, the input is altered in a series of defined steps. Each step is catalyzed by an enzyme: mechanisms regulate enzymes. Prevents molecular deficits & surpluses: creates a specific product. Energy: energy is the capacity to cause change. Necessary for anabolic pathways: necessary for all metabolic processes. Forms of energy: kinetic energy energy of motion. Thermal energy random movement of particles or atoms produces this energy form: potential energy inherent energy. Chemical pe energy contained in chemical bonds of a molecule. Thermodynamics: the study of energy transformations that occur in nature, 1st law of thermodynamics. Energy is just converted from one form to another: 2nd law of thermodynamics.
