According to the researchers, the new cell actually works better under cloud cover than in full sunlight.

Second, ammonia is not freed when the cell does work.

They didn't seem to do any harm, and, once they'd moved in, actually made the cells work better, not worse.

Cell biology is the study of how living cells work.

They act in several different ways to affect how immune cells work.

All of these questions have obvious answers once you understand how cells work - so let's get started!

"It turns out that we don't know a thing about how cells work."

But scientists did not know how the cell worked.

As it turns out, scientists have had difficulty getting the cells to work with.

Many insurgent cells work together in western Iraq but remain independent of one another.