01:119:115 Lecture Notes - Lecture 7: Exergonic Reaction, Kinetic Energy, Pinocytosis
2 May 2016
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Document Summary
Molecules cluster in coated pits is specific ex: cholesterol uptake from blood by mammalian cells. Metabolism sum of all chemical reactions of an organism regulated to maintain homeostasis an emergent property of life arises from orderly form orderly interactions between molecules. Metabolic pathways begins with a specific molecule and ends with a product each step is catalyzed by a specific enzyme. 2 types of metabolic pathways: catabolic pathways breaking down complex molecules to simpler ones release energy ex. Cellular respiration= break down of glucose: anabolic pathways build complex molecules from simpler ones needs energy ex: synthesis of protein from amino acids. Potential = stored e has not yet been used. Heat (thermal energy) = random movement of atoms of molecules. The laws of thermodynamics study of energy transformations. First law of thermodynamics energy cannot be created or destroyed but can be converted from one form to another. Every energy transfer or transformation increases the entropy (disorder) of the universe.
