| To make matters worse, fish have large respiratory membranes, the gills, which expose a huge amount of surface area to the watery medium. |
| Calendula helps to heal broken skin, and the oil in the salve creates a protective barrier that prevents mucous membranes from drying out. |
| These herbs contain highly toxic alkaloids, including aconitine, which activate sodium channels and over-stimulate cell membranes. |
| It is the hydrogen ion component that is toxic, affecting cell membranes, acidifying substrata, and leaching metals like calcium. |
| The electrocytes establish a charge difference across the cell membranes, presumably by active transport of ions. |
| Due to small fluxes and the lower sensitivity of gravimetry, only radiometry was used for astomatous membranes. |
