1. CH. 9 quick review
AP Biology- Brown

2. Reducing agent (electron donor) = loses e- /loses potential energy
Oxidizing agent (electron acceptor) = gains e- /gains potential energy
In cell resp – oxygen is reduced (gains a hydrogen atom) (accepts e- at the end of ETC) and glucose is oxidized (loses hydrogen atom)
Aerobic respiration- with oxygen
Obligate aerobe = can only work with oxygen
Anaerobic respiration - without oxygen (fermentation = cytoplasm (cytosol) of cells)
Alcoholic (ethanol production)
Lactic Acid (muscles)
BOTH oxidize NADH to NAD+
Facultative anaerobe = can work with or without oxygen
Obligate anaerobe = can only work without oxygen
Glycolysis (occurs with and without oxygen)
2 ATP used and 4 ATP made – overall = 2 ATP; 100% made through oxidative phosphorylation
Products = 2 NADH, 2 pyruvate, 2 ATP
Cytoplasm (cytosol)
Krebs cycle (AKA Citric Acid cycle) (needs oxygen)
Releases 4 molecules of CO2 for every glucose molecule
oxidation of pyruvate to acetyl coA which enters citric acid cycle
Mitochondrial matrix
ETC (needs oxygen)
Extracts energy from e-
Chemiosmosis (ATP produced via ATP synthase- proton motive force)
Mitochondrial inner membrane
TOTAL ATP = 30-32