Membranes

Throat and nose membranes hurt by dry air allow cold viruses to enter more easily. It is important to carry out sensible counter plans against the cold with heaters and against the dryness with humidifiers.

The substance can irritate or corrode the skin, eyes, or mucous membranes.

Because mucous membranes are prone to infection, doctors advise that you wash your hands before picking your nose.

Without stable membranes provided with channels operated by proteins, there would be no cells. But without cells, there would be no proteins that could form the membrane channels.

Some of these cellular modifications also include changes to the membranes that envelop the microbe and protect it from its hostile environment.

The male cicadas are making all the racket — a mating call produced by vibrating membranes in their abdomens.

Researchers at the University of Manchester in England say they’ve successfully used graphene-oxide membranes to filter common salts from seawater, turning it into drinking water more affordably than current desalination techniques.

The chemicals are designed to irritate the mucous membranes of the eyes, nose and throat.

Prokaryotes do not have organelles such as mitochondria or chloroplasts; eukaryotes have a variety of organelles, some of which are separated from the cytoplasm by membranes.

The male cicadas are making all the racket—a mating call produced by vibrating membranes in their abdomens. Their collective symphony approaches a level of 100 decibels—as loud as a motorcycle.