LIFESCI 2 Lecture Notes - Lecture 5: Acetyl-Coa, Facultative Anaerobic Organism, Cellular Respiration

• School: UCLA
• Department: Life Sciences
• Course: LIFESCI 2
• Professor: Friscia Anthony/ Esdin

Document Summary

Obligate anaerobes only use fermentation (some bacteria) Facultative anaerobes switch between fermentation and full oxidation (bacteria, yeast) Obligate aerobes only full oxidation (no fermentation) e. g. brain cells. Electron carrier molecules get reduced they carry electrons e. g. nadh, fadh, paoh2. Aerobic respiration mglucose + oxygen cabon dioxide + water + atp. Aerobic respiration requires oxygen (eukaryotes, some prokaryotes) Last 5 release energy make atp convert g3p to pyruvate. Makes 4 atp (2 for each g3p) and 2nadh nad+ nadh (1 for each g3p) Convert pyruvate to acetyl coa (2c) -- release co2, make nadh - twice. Citric acid cycle occur in mitochondria (eukaryotes) Acetyl coa (2c) + 4c citric acid (6c) Citric acid (6c) 4c during the process we make 1 atp, 2 co2, 3 nadh, 1. Feedback regulation atp inhibits the first reaction. Oxidative phosphorylation occur in mitochondria (eukaryotes) Carrier molecules bring electrons to electron transport chain. Oxidize carrier molecules and use energy to phosphorylate adp to atp.