BIOL130 Lecture Notes - Lecture 5: Kinetic Energy, Endergonic Reaction, Thermodynamics

• School: University of Waterloo
• Department: Biology
• Course: BIOL130
• Professor: Todd Holyoak

Document Summary

Thermodynamics: relationship b/w forms of energy and heat. 1st la(cid:449) of the(cid:396)(cid:373)od(cid:455)(cid:374)a(cid:373)i(cid:272)s: e(cid:374)e(cid:396)g(cid:455) (cid:272)a(cid:374)"t (cid:271)e (cid:272)(cid:396)eated (cid:374)o(cid:396) dest(cid:396)o(cid:455)ed; it (cid:272)a(cid:374) o(cid:374)l(cid:455) (cid:271)e transferred and transformed. Some terms: energy: the capacity to do work, move matter against opposing forces, rearrange matter, kinetic energy (ek): the energy of motion, heat, potential energy (ep): sto(cid:396)ed e(cid:374)e(cid:396)g(cid:455), (cid:396)esulti(cid:374)g f(cid:396)o(cid:373) , location (ex. Ball at top of hill, water behind dam: structure (ex. Arrangement of atoms in molecule: chemical bonds contain potential (stored) energy, electrons participating in chemical bonds = source of potential energy, this is how chemical rxns provide source of cellular energy!! Adp) net energy release: atp + energy- adp + p + more energy. Pushing a ball up a hill needs energy input: low pe (potential energy) high pe, g reactants higher than g products, g > 0 positive, products are more complex than reactants, energetically unfavorable.