EOG8TTK12	GO:0035152	1/63	regulation of tube architecture, open tracheal system	biological_process	"Ensuring that tracheal cells form and maintain tubular structures with the correct size and shape for their position in the network. This is essential for efficient flow of gases through the tracheal network." [GOC:mtg_sensu, PMID:14570584]
EOG8TTK12	GO:0008362	1/63	chitin-based embryonic cuticle biosynthetic process	biological_process	"Synthesis, including the chemical reactions and pathways resulting in the formation of chitin and other components, and deposition of a chitin-based embryonic cuticle by the underlying epidermal epithelium. This tough, waterproof cuticle layer is essential to provide structural integrity of the larval body. An example of this is found in Drosophila melanogaster." [GOC:bf, GOC:mtg_sensu, PMID:12019232]
EOG8TTK12	GO:0006031	1/63	chitin biosynthetic process	biological_process	"The chemical reactions and pathways resulting in the formation of chitin, a linear polysaccharide consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues." [GOC:jl, ISBN:0198506732]
EOG8TTK12	GO:0035158	1/63	regulation of tube diameter, open tracheal system	biological_process	"Ensuring that a tube in an open tracheal system is of the correct diameter. When primary branches form their lumens are small (less than 2 micrometers) in caliber and must undergo regulated expansion during larval life to reach their mature size." [GOC:mtg_sensu, PMID:14570584]
EOG8TTK12	GO:0007424	1/63	open tracheal system development	biological_process	"The process whose specific outcome is the progression of an open tracheal system over time, from its formation to the mature structure. An open tracheal system is a respiratory system, a branched network of epithelial tubes that supplies oxygen to target tissues via spiracles. An example of this is found in Drosophila melanogaster." [GOC:mtg_sensu, PMID:8625828]