Aerobic respiration is a fixed metabolic reaction that takes place in the presence of oxygen, going on in a cellular to transform chemical energy into ATPs. Anaerobic respiration is a process of cellular respiration in which the excessive energy electron acceptor is neither oxygen nor pyruvate derivatives. 1. Lactic fermentation is a minor process which occurs after glycolysis in anaerobic respiration. In it, an enzyme found in most EVERY organism called lactate dehydrogenase catalyzes a reaction between the NADH produced from glycolysis with the pyruvate molecules to create the NAD+ necessary to begin glycolysis. 2. During heavy exercise, expiratory flow limitation and prolonged expiratory time RESULT in higher average positive intrathoracic PRESSURES that reduce ventricular transmural pressure and act like a Valsalva manoeuver, decreasing the RATE of ventricular filling during diastole and reducing stroke volume, venous return .4.yeast is a single-celled fungus that uses cellular respiration, which converts GLUCOSE and oxygen into carbon dioxide and ATP. ... Fermentation is anaerobic respiration and happens without oxygen. Glucose is converted to two ATP, ethanol, and carbon dioxide.