2) The Krebs Cycle (which was discovered by Hans Adolf Krebs in 1937 and is also known as the citric acid cycle) – this takes place in the mitochondria (the mitochondria are the main sites of energy production in a cell) and has two goals a) to convert pyruvate into Acetyl CoA and b) to perform the full operation of the Krebs cycle – i.e. to produce 2ATP’s, 8NADH’s (NAD stands for Nicotinamide Adenine Dinucleotide and is a coenzyme found in all living cells), 2 FADH2’s (FAD stands for Flavin Adenine Dinucleotide and is a coenzyme involved in several important reactions in metabolism.
