BSCI 105 Lecture Notes - Lecture 16: Inner Mitochondrial Membrane, Oxidative Phosphorylation, Mitochondrial Matrix

• School: University of Maryland
• Department: Biological Sciences Program
• Course: BSCI 105
• Professor: Norma Allewell

Document Summary

Photosynthesis and cellular respiration are connected in a circle. Fadh2: nadh and fadh2 are re-oxidized in the electron transport chain. Cellular respiration: c6h12o6 + 6o2 -> 6co2 + 6h2o + energy. Redox reactions: depend on the movement of electrons to more electronegative elements. Nad+ + 2 h+ -> nadh + h+ (nad picks up h+) Fad + 2 h+ -> fadh2 (fad picks up 2h. ) (hydride ion) Cellular respiration occurs in stages: glycolysis. Glucose is broken into pyruvate via oxidation. 1 group of 6 (glucose) is broken into 2 groups of 3 (2 parts of pyruvate) Substrate-level phosphorylation: process that creates atp from adp. Pyruvate has to get across cellular membranes of the mitochondrion. Coenzyme a attaches to citric acid cycle: heat sheet. Producing atp by oxidative phosphorylation: produces a lot of atp. Chemical and energy balance in glycolysis: net reaction. C6h12o6 + 2nad+ + 2 adp + 2 pi -> 2 c3h4o3 + 2nadh + 2h+