Hydrogen-Ion ConcentrationGastric Acidity DeterminationAcid-Base EquilibriumCarbon DioxideBicarbonatesHydrogenSolutionsHydrogen BondingHydrogen PeroxidePotassiumSodiumHydrogen SulfideProtonsCalciumBuffersChloridesAcidosisIonsIon ChannelsKineticsOsmolar ConcentrationHydrochloric AcidAcidosis, RespiratoryMagnesiumMembrane PotentialsGastric JuiceWaterAcetazolamideAcidosis, Renal TubularBiological Transport, ActiveIon TransportCell Membrane PermeabilityAlkalosis, RespiratoryAmmonium ChloridePartial PressureSodium ChlorideSecretory RatePotassium ChlorideModels, MolecularExtracellular SpaceTime FactorsHelix (Snails)Sodium BicarbonateElectrophysiologyTurtlesModels, BiologicalModels, ChemicalMetalsOxygenTemperatureCations, MonovalentPhosphatesCationsMagnetic Resonance SpectroscopyAcidsIon Channel GatingElectric ConductivityProtein ConformationHypertonic SolutionsIon-Selective ElectrodesDogsLactatesCations, DivalentCobaltHypercapniaBinding SitesMolecular Sequence DataIsotonic SolutionsPharmaceutical SolutionsMathematicsSodium-Hydrogen AntiporterAmilorideAequorinElectrochemistryGastric MucosaBiological TransportDinitrophenolsQuaternary Ammonium CompoundsOsmosisSulfatesPentagastrinManganeseZincElectrolytesIonophoresCalcium ChlorideOxidation-ReductionAbsorptionGastric AcidProtein BindingEndolymphNucleic Acid ConformationGramicidinAnuraAmino Acid SequenceStrontiumThermodynamicsLasalocidDepression, ChemicalNeurons