Results
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| Property | Organism | Value | Units | ID | Details |
|---|---|---|---|---|---|
| Human body mean volume | Human Homo sapiens | 65.22 | Liters | 109718 | Bianconi E, et al., An... |
| Assumed number of divisions an average stem cell undergoes during a human lifespan | Human Homo sapiens | 100 | divisions | 112678 | Jackson AL, Loeb LA.... |
| Number of microvilli per cell on HeLa cell | Human Homo sapiens | 200 | microvilli/cell | 102481 | Fisher HW, Cooper TW.... |
| Total cell number in body (for value of 3e+13 see BNIDS 113005, 113006) | Human Homo sapiens | 3.7e+13 (±0.8) | Cells | 109716 | Bianconi E, et al., An... |
| Bounds for bacteria number in different organs, derived from bacterial concentrations and volume | Human Homo sapiens | Table - link | N/A | 112982 | Sender R, Fuchs S, Milo... |
| Number of TNF molecules in human lung alveolar carcinoma cells | Human Homo sapiens | 6600 | Unitless | 100583 | Lauffenburger, Douglas A.... |
| Number of erythrocytes in adult | Human Homo sapiens | 2.7e+13 | Cells/adult male | 108284 | Osgood EE. Number and... |
| Human Population Size at onset of Neolithic 10000 years before present | Human Homo sapiens | 1e+6 | Individuals | 104622 | Hawks J, Hunley K, Lee SH... |
| Number of proteins in large subunit of ribosome | Human Homo sapiens | 47 | unitless | 102478 | Ribosomal Protein Gene... |
| Number of proteins in small subunit of ribosome | Human Homo sapiens | 32 | unitless | 102507 | Ribosomal Protein Gene... |
| Detailed calculations for number of cells in body-Spreadsheets with the detailed calculations mentioned throughout the text and references for all data sources | Human Homo sapiens | Excel table - link | N/A | 113009 | Sender R, Fuchs S, Milo... |
| Number of islets of Langerhans & total islet volume | Human Homo sapiens | total number of islets 3.6×10^6-14.8×10^6: total islet volume 0.5-1.3 cm^3 | N/A | 113104 | Ionescu-Tirgoviste C et al.... |
| Number of bird specimens on Earth | Biosphere | 200 - 400 | billion (10^9) birds | 116940 | Kevin J. Gaston & Tim... |
| Number of microbial species on Earth | Biosphere | 10^11 - 10^12 | species | 113932 | Locey KJ, Lennon JT.... |
| Number of antigen-receptor molecules on T cell surface | Human Homo sapiens | 30000 | receptors/cell | 103567 | Janeway's Immunobiology... |
| Number of cilia on cells that contain multiple cilia | Human Homo sapiens | 200-300 | unitless | 105742 | Fliegauf M, Benzing T... |
| Number of People Who Have Ever Lived on Earth | Human Homo sapiens | 1.08e+11 | Humans | 111241 | Population Reference... |
| Summary of stereological data on lung | Rat Rattus norvegicus | Table - link | N/A | 113843 | Willführ A et al., Estimation... |
| Number of Peyer’s patches in the small intestine | Human Homo sapiens | ~339 | patches/small intestine | 110511 | McConnell EL, Basit AW... |
| Number of lysosomes per human mammary epithelial cell at pH 7.4 | Human Homo sapiens | 220 | Unitless | 106077 | Glunde K, Guggino SE... |