The Cytoplasmic Membrane of Picrophilus is Extremely Acid Impermeable at Very

Question

The cytoplasmic membrane of Picrophilus is extremely acid impermeable at very low pH.

Accepted Answer

Picrophilus is an extremely acidophilic archaeon that can grow in extremely acidic environments down to a pH of 0.06. Its unique cytoplasmic membrane is composed of unique lipids that are highly resistant to protonation, making it impermeable to protons and other ions at very low pH. This adaptation allows Picrophilus to maintain a neutral intracellular pH and continue to carry out essential cellular processes even in extremely acidic environments.