FREE. There are 28 vocabulary words used in this exercise that are commonly used in a unit on cellular respiration. The vocabulary words are: pyruvic acid, protons, glucose, aerobic, matrix, adenosine triphosphate, ATP synthase, water, adenine, respiration, oxygen, lactic acid, Kreb's cycle, alcoholic, phosphate, glycolysis, citric acid, NADH, electron transport chain, cristae, mitochondria, carbon dioxide, fermentation, cytoplasm, thirty eight, anaerobic, ribose, and acetate.