Table 1.

CO₂ permeabilities of cells and organelles of various mammalian tissues.

Type of Cell/Organelle	PCO2 (cm/s)
Apical membrane PCE a	0.0015	Endeward and Gros [8]
MDCK b	0.017	Itel et al. [3]
Basolateral membrane PCE a	0.022	Endeward and Gros [8]
Rat Cardiomyocytes	0.1	Arias-Hidalgo et al. [18]
Human Erythrocytes	0.15	Endeward et al. [4,6]
Mitochondria c	0.33	Arias-Hidalgo et al. [19]

^a proximal colon epithelium of guinea pig; ^b Madin Darby canine kidney cells; ^c isolated from rat liver.