PSYC 2000 Lecture Notes - Lecture 27: Endergonic Reaction, Inner Membrane, Cell Membrane
Document Summary
Glucose is utilized in presence of o2 to eventually produce lots of atp. Glucose picked up in sugars in small intestines to blood stream. Six carbons in glucose - stored energy in bonds. Glucose - c6h12o6 + o2 6co2 + h2o + energy. High energy substrates producing low energy products - exergonic reactions. Energy released is used in an endergonic reaction - coupled reactions. Mitochondria has two membranes- outer and inner. Glucose broken down into two 3-carbon compounds called pyruvate (process- lysis) If o2 is not present, pyruvates do not go in the mitochondria. Bonds were broken in this process- produces atp (2) Pyruvates go thru two membranes to finally be stripped of one of its carbons. Co2 goes from high concentration to low, bloodstream to lungs - exhale. Compartment bw mitochondrion membranes is water based solution. Infoldings of inner membrane increase surface are - called crista or cristae. Strip away carbons to produce energized electron carriers.
