Sentences with phrase «oxygen compounds which»

The radiation triggers a shower of reactive oxygen compounds which are toxic to all sorts of parts of the cell: «Proteins, lipids, they chew up any biological molecule,» Lin said.

Not exact matches

Elements and compounds below the surface could be used to create fuel, including water, which can be split into useful hydrogen and oxygen.

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.

In the absence of oxygen inside a digester, bacteria break down the compounds in sewage to create gaseous methane, which can be used to power gas stoves or converted to electricity.

This compound, which complexed with the sodium cation, was the first compound known to display such activity and became known as dibenzo -18-crown-6, an 18 - atom heterocycle containing 6 oxygen atoms.

Safer processes use oxygen compounds and result in paper that is «totally chlorine free,» «process chlorine free» (chlorine free except for recycled fibers that were previously chlorine - bleached) or «elemental chlorine free,» which substitutes safer chlorine dioxide for chlorine.

Matula says this sudden illumination happens because during the first bout of sonoluminescence, temperatures in the bubble, which can be as high as several hundred thousand degrees — hotter than the sun's surface — do something to nitrogen and oxygen to make them form compounds such as nitrous oxide that dissolve in the surrounding water.

Using spectral readings from telescopes at the Keck Observatory in Hawaii, Hand has found high levels of oxidative chemicals such as sulfate, oxygen, sulfur dioxide and hydrogen peroxide on Europa's surface, which are produced as ionizing radiation from Jupiter scours it, splitting apart water molecules and sulfur compounds in the uppermost layers of its ice.

Previously, the spacecraft had found alcohols, sugars and oxygen compounds, which are also needed for life and cellular structure.

Janez Cerkovnik and Bozo Plesnicar of the University of Ljubljana in Slovenia used a reaction similar to the commercial process for manufacturing hydrogen peroxide, which employs an anthraquinone compound to reduce oxygen.

«As a result of screening about 200 compounds, we found that (3 - furyl) diphenylmethane (chem7), which is a triarylmethane that contains 2 phenyl groups and a furyl (a 5 - membered aromatic ring containing 4 carbons and an oxygen atom in the ring) group, had strong inhibitory activity on plant cell division,» says Ueda.

The hydrothermal conditions of the experiments, which also mimic early Earth settings (a proximity to volcanic activity and impact craters), released a complex mixture of oxygen - rich compounds, the probable result of oxidative processes that occurred in the parent body.

The researchers tested a variety of solutions containing the soil bacteria Geobacter sulfurreducens and Thiobacillus denitrificans, which thrive by eating acetate (an organic compound that makes vinegar sour) and nitrate (a negatively - charged molecule of biologically available nitrogen and oxygen), respectively, when they can find a spare electron or two.

In this phenomenon, water molecules and oxygen in the atmosphere create strong oxidants which degrade organic compounds into water and carbon dioxide.

Phosphorescence from organic compounds has typically been observed at extremely low temperatures and in the absence of oxygen, which limits their scope for practical applications.

The enzyme converts heme, a cellular compound that produces damaging oxygen radicals, to less harmful compounds, some of which neutralize oxygen radicals.

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).

ORGANIC COMPOUNDS Organic compounds, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or COMPOUNDS Organic compounds, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or compounds, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.

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.

This compound is responsible for increasing the nitric oxide production in the body, which leads to dilatation of the blood vessels and a reduced oxygen consumption, thereby increasing athletic endurance.

Carbohydrates: Here is the technical definition: - Any of various neutral compounds of carbon, hydrogen, and oxygen (such as sugars, starches, and celluloses), most of which are formed by green plants and which constitute a major class of animal foods.

It's working mechanism is similar to these compounds and works by increasing aerobic capacity, stimulation of the central nervous system and increase of blood pressure and rapid oxygen transportation all of which increase the metabolic rate and thus melt fat.

«The theory is: the use of oxygen in the organism can be stimulated by protein compounds of sulphuric content, which make oils [omega - 3] water - soluble...» In short, this diet stops the spread of cancer and kills cancer 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.

Mag 07 body cleanse formula is a combination of magnesium oxide compounds which have been ozonated and stabilized to release singlet oxygen over 12 hours or more

Those excess carbohydrates and proteins are converted into triglycerides (compounds made up of carbon, hydrogen and oxygen), which are stored in lipid droplets inside fat cells.

Methane is a carbon compound produced during anaerobic fermentation, a process which occurs only in the absence of oxygen.

A little olivine crystal in the Bunbury Basalt, for instance, or whether it's in the lava fields of Hawaii — taking it down to the nitty gritty in theoretical chemistry is the magnesium, iron and oxygen atom, which they do in Year 9 in looking at ionic compounds.

Smoke inhalation in dogs is thankfully uncommon but is very severe when it does occur; the mainstay of treatment is supportive and symptomatic care which may include oxygen supplementation, hydroxocobalamin (in case cyanide compounds were inhaled), albuterol (for bronchodilation) along with other care as needed (fluids etc...).

Oxygen, in combination with hydrogen, is found in water and in many other compounds: so is carbon, nitrogen and sulphur, the elements from which proteins and other cellular components are made.

when an organic compound methane reacts with oxygen they produces carbon dia oxyide and the hydrogen gas which is harmful for humman biengs carbon dia oxyide is used in our drinks like pepsi and it is soulible in water at heavey pressure and hydrogen is used as fuel and the equatoin becomes ch4 + h2 ---- > co2 +2 h2