Sentences with phrase «oxygen compounds called»

DEEP DEVELOPMENT Diamonds (dark grey) begin to form from minerals containing iron and magnesium (white) and from carbon - oxygen compounds called carbonates (light grey) in a scanning electron microscope image.

Like a notorious suspect able to stay one step ahead of the law, corrosive oxygen compounds called free radicals are implicated in many diseases but leave little hard evidence of their handiwork.

Not exact matches

This releases a chemical called a polyphenol oxidase, an enzyme that pulls oxygen from the air and uses it to create compounds called o - quinones, which then link up into long chains (which may include proteins, too) that turn the apple's flesh brown.

And while salt in the air can accelerate corrosion, Ramirez says, it also adds to a protective covering on the statue called a patina, the result of oxygen, carbon dioxide, and other compounds reacting with the copper.

NOx gases are produced in oxygen - poor soils when microbes break apart nitrogen compounds in the fertilizer, a process called denitrification.

The near - infrared mapping spectrometer on NASA's Galileo spacecraft found evidence of the presence of molecules made of oxygen, carbon, sulfur, hydrogen, and nitrogen on Europa, and a hint of the presence of a class of complex organic compounds called tholins which may be driven by pre-biotic processes (more).

Excess carbs and proteins are converted into chemical compounds called triglycerides (which consist of carbon, hydrogen, and oxygen) and then stored in the lipid droplets of fat cells.

They are called «poly», because they contain many double bonds which tend to react with oxygen when heated and form harmful compounds such as free radicals.

In the late 1980s, scientists realized that alpha - lipoic acid, a compound initially classified as a vitamin when it was discovered three decades earlier, possessed potent antioxidant properties that could prevent healthy cells from getting damaged by unstable oxygen molecules called free radicals.