LIFESCI 2 Lecture Notes - Lecture 7: Mitochondrial Matrix, Acetyl-Coa, Cellular Respiration

• School: UCLA
• Department: Life Sciences
• Course: LIFESCI 2
• Professor: Arnold, A.P., Esdin, J.

Document Summary

Energy from sunlight -> sugar using co2: heterotrophs. Consume food to get c source, convert glucose -> atp: consume carbohydrates, protein, lipids. Most atp generated in cellular respiration within mitochondria: mitochondria. Folds on inner membrane called cristae (surface area) 1 glucose molecule -> 30 atp molecules: glucose & atp production. Aerobic: c6h12o6+6o2 6co2 +6h2o+energy (-686 kcal/mole, exergonic/releasing energy) carbohydrate oxidized. Phosphates in atp are negative to unite them need a covalent bond with high energy (high energy bonds) Exergonic got energy from breaking down glucose molecules (food molecules) Glycolysis followed by fermentation: redox reactions, oxidation: lose e- & h, reduction: gain e- & h, oxidation agent is in the oxidized state. Energy conversion of glucose: under aerobic conditions, glucose undergoes four major pathways. The respiratory chain (electron transport chain) (mitochondrial inner membrane: glycolysis. 10 reactions turn glucose -> 2 pyruvate molecules in cytosol; independent of mitochondria reactions see slide.