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Property Organism Value Units ID Details
pH of cerebrospinal fluid Human Homo sapiens 7.349 Unitless 103873 Flindt Rainer, Amazing...
Extracellular pH [pHe] and intracellular pH [pHi] in cancer cells compared to normal cells Human Homo sapiens Figure - link unitless 112180 Damaghi M, Wojtkowiak JW...
pH values of human bodily fluids Human Homo sapiens Table - link N/A 101941 Amazing numbers in biology...
Infectious dose of E. coli enabled by three acid resistance (AR) systems Bacteria Escherichia coli 10 to 100 Bacteria 108576 Ma Z, Gong S, Richard H...
Distribution and composition of bacterial species in the gastrointestinal tract Human Homo sapiens Figure link - link CFU/mL 112858 Dueñas M et al., Studies...
pH of synaptic vesicle Generic ~5.5 pH units 107305 Zhang Q, Li Y, Tsien...
pH in the duodenum and jejunum of neonatal rats Rat Rattus norvegicus 6.0 - 6.5 unitless 117061 Saji F, Samejima Y, Kamiura S...
pH of endosome and lysosome Eukaryotes endosome <6: lysosome 5 unitless 117078 Adam RD. Biology of Giardia...
Transit time, pH, and enzyme activity of the gastrointestinal tract of the mouse, rat, rabbit, monkey, dog and human Mammals Table - link N/A 115530 Davies B, Morris T. ...
Present pH value in oceans Biosphere 7.9 - 8.4 unitless 116101 Duursma EK, Boisson MPRM...
Average pH of the ocean Biosphere 8.2 Unitless 100966 aquatic photosynthesis...
Intracellular pH value in a typical mammalian cell Mammals in lysosome 4.7: in mitochondria 8.0 unitless 114153 Hou H et al., Single-cell...
pH of lumen of lysosome Metazoa animals ~4.6 unitless 117092 Haoxing Xu and Dejian Ren...
Range of medium pH values in which wild-type yeast can grow Budding yeast Saccharomyces cerevisiae 2.5 to 8.5 Unitless 106516 Orij R, Brul S, Smits...
Internal pH Bacteria Escherichia coli 7.85 (±0.05) Unitless 107037 Roe AJ, McLaggan D, Davidson...
pH of mammalian and avian cells (other than nerve, muscle, and blood cells) vertebrates Table - link unitless 110773 Roos A, Boron WF (1981)...
Mean intestinal pH Rodent <5.2 in the mouse: <6.6 in the rat unitless 110516 McConnell EL, Basit AW...
pH dependence of chloride self-exchange in ghosts at 38°C Human Homo sapiens Table - link N/A 110928 Brahm J. Temperature...
pH of resting mitochondria in living neonatal rat cardiomyocyte Mammalian tissue culture cell 7.91 (±0.16) Unitless 105940 Llopis J, McCaffery JM...
pH in heart of turtle, rabbit, rat, dog & sheep in vivo vertebrates Table - link unitless 110769 Roos A, Boron WF (1981)...