BIOL 1201 Lecture : Week 4 Biology
Document Summary
Look up 1-2 facts on cystic fibrosis: pre-lecture videos: membrane structure, mastering biology: online quiz 7. Chemical reactions: occur anytime 2+ atoms, ions, or molecules collide in such a way that they produce a new substance, must hit a right way with a sufficient force. Laws of thermodynamics: first law, energy can neither be created nor destroyed only converted from one form to another, second law, when converting energy from one form to another the amount of useful energy decreases. Free energy and chemical reactions: spontaneous, release free energy (exergonic, reactants have higher energy than products (energy released, g is negative, non-spontaneous, require free energy (endergonic, reactant has less energy than product (energy required, g is negative. Changes in free energy: g= h-t s, g=free energy, h=enthalpy (heat energy that can be released as heat) not temperature, t=temperature (k, s=entropy (a measure of disorder)
