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Property Organism Value Units ID Details
PPi concentration Bacteria Escherichia coli 0.5 to 1.3 mM 108185 Stockbridge RB, Wolfenden...
PPi concentration Bacteria Bacillus subtilis 1 to 6 mM 108184 Mijakovic I et al., ...
DNA mass per double stranded DNA virus Virus 0.09 fg dsDNA/virus 105851 Wommack KE, Colwell RR....
PPi concentration in cell Bacteria Escherichia coli 0.9 to 1.3 mM 108173 Chen J, Brevet A, Fromant M...
PPi concentration Plants ~200 μM 108182 Fraichard A, Trossat C...
Fraction of DNA in the top 1 cm layer of deep-sea sediments that is extracellular Biosphere 90 % 105856 Dell'Anno A, Danovaro...
Metabolic rate of cyst as fraction of metabolic rate of trophozoite Protozoa Giardia muris 10 - 20 % of metabolic rate of trophozoite 117080 Adam RD. Biology of Giardia...
Carbon, nitrogen and phosphorus elemental ratio Green algae C:P≈200 and N:P≈27 N/A 106053 Arrigo KR. Marine mi...
Carbon, nitrogen and phosphorus elemental ratio Red algae C:P≈70 and N:P≈10 N/A 106054 Arrigo KR. Marine mi...
Gene density: one gene every Fruit fly Drosophila melanogaster 9000 Base pairs 104337 Adams MD et al, The genome...
Average cortical cell length Thale cress Arabidopsis thaliana 7.5 (±0.4) μm 107798 Rutschow HL, Baskin TI...
Number of genes Mycobacterium tuberculosis 3995 unitless 101743 Camus JC, Pryor MJ, Médigue C...
Length of eukaryotic cilia Frog Xenopus tropicalis 6 (±1) µm 105112 Neugebauer JM, Amack JD...
Concentration of bacteria in rumen Sheep Ovis aries ~1e+10 cells/ml 102396 Brock TD. Microbial growth...
Primary cell wall composition Plants a complex array of polysaccharides ~90%: some proteins ~10% % 113528 van de Meene AM, Doblin MS...
Motility of S. typhimurium at constant attractant levels Bacteria Salmonella typhimurium 27.2 to 28.8 Table - link μm/sec 106818 Macnab RM, Koshland DE...
Speed of Listeria pathogen in host cell Bacteria Listeria monocytogenes 0.25 to 1.46 in J774 cells: 0.12 to 0.35 in PtK2 cells μm/sec 106833 Dabiri GA, Sanger JM...
Swimming speed Bacteria Escherichia coli ~30 μm/sec 108082 Maeda K, Imae Y, Shioi JI...
Number of genes Prochlorococcus ~1,900 genes 111980 Hopkinson BM, Young JN...
Estimated total number of species of organisms Biosphere 3e6-5e6 Species 103931 May RM. How Many Species...