A space between teeth not due to missing teeth. 4. A space between the upper central incisors in humans, or a space between two adjacent teeth in the same dental arch, especially that between the upper lateral incisor and the adjacent canine, into which the lower canine closes in the Carnivora, such as dogs.
Aerobic respiration. Definition. noun. (1) A form of cellular respiration that requires oxygen in order to generate energy. (2) The process of generating energy by the full oxidation of nutrients through Krebs cycle where oxygen is the final electron acceptor.Supplement.ith aerobic respiration, glycolysis continues with the Krebs cycle and oxidative phosphorylation. These post-glycolytic reactions occur in the mitochondria in eukaryotic cells, and in the cytoplasm in prokaryotic cells.
Anaerobic respiration is respiration without oxygen; the process uses a respiratory electron transport chain but does not use oxygen as the electron acceptors.Cells that use it. Aerobic respiration occurs in most cells.erobic respiration, a process that uses oxygen, and anaerobic respiration, a process that doesn't use oxygen, are two forms of cellular respiration.