Sentences with phrase «oxygen molecules produced»

Not exact matches

Infants in this age range are vulnerable because they have not matured enough to produce methemoglobin reductase, an oxygen - carrying molecule.

The human pathogen Pseudomonas aeruginosa produces molecules called phenazines that help it to cope with the oxygen - limited conditions within biofilms.

Once the nanoparticles are added and light applied, the water separates into hydrogen and oxygen almost immediately, producing twice as much hydrogen as oxygen, as expected from the 2:1 hydrogen to oxygen ratio in H2O water molecules, Bao said.

Complex organic molecules, consisting of carbon bonded with other elements like oxygen and hydrogen, are common in the Milky Way, but it was uncertain whether they would be produced in certain dwarf galaxies like the neighboring Large Magellanic Cloud.

Researchers at the University of Southampton have engineered cells with a «built - in genetic circuit» that produces a molecule that inhibits the ability of tumors to survive and grow in their low oxygen environment.

By modeling the reaction, they concluded that the initial energy burst could come from ultraviolet (UV) light, which produces energetic oxygen called singlet oxygen when it breaks up water molecules.

Because nitric oxide breaks down very quickly, as soon as the chemical is no longer being produced, the oxygen molecules are again trapped by the mitochondria and are not available for the production of light.

By separating out the starlight from the planet light, we can identify molecules in the planet's atmosphere and look for gases produced by life, like oxygen, ozone and ammonia.

Normally, one metal atom (either barium or calcium) can react with an oxygen atom to produce a stable molecule.

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.

Moreover, small amounts of singlet oxygen produced during metabolic reactions can act as a local signaling factor that oxidizes and modifies target molecules, but the underlying mechanisms are poorly understood.

In sickle cell disease, individuals have two copies of a genetic mutation that produces an abnormal change in hemoglobin, the primary molecule that carries oxygen in the blood.

They found that soluble iron in the earliest oceans quickly combined with oxygen to form rust — forming reactive oxygen molecules, which damage biological tissue and make the cyananobacteria grow more slowly and produce less oxygen.

In the «first stage» light is absorbed and used to produce energy molecules, with oxygen as a byproduct.

Substrate molecules, such as organic compounds containing double bonds, can extract oxygen atoms from this bank to produce oxidized products.

The gas is produced by splitting up oxygen molecules with an electric discharge.

The first parameter — the relative amounts of FAD to NADH — can reveal how well the cell is consuming oxygen, metabolizing sugars, or producing or breaking down fat molecules.

More research produced the answer: Vitamin C induced what is known as a Fenton reaction, causing iron to react with other molecules to create reactive oxygen species that kill the TB bacteria.

Some of these recombine into nitric oxide, and this in turn reacts with other atmospheric chemicals, occasionally producing a molecule made up of three oxygen atoms — ozone, or O3.

By forcing adult mice with sickle cell disease to produce a fetal version of the hemoglobin molecule that carries oxygen in blood, a research team has eliminated symptoms of disorder in the animals.

Earth's ozone layer, 10 kilometres above the surface, is produced when light from the Sun interacts with molecules of oxygen in our atmosphere, and it produces an unmistakable signal that could be detected by JWST.

The reaction combines the hydroxyl molecule (OH, produced by reaction of oxygen and water) and carbon monoxide (CO, a byproduct of incomplete fossil fuel combustion) to form hydrogen (H) and carbon dioxide (CO2, a «greenhouse gas» contributing to global warming), as well as heat.

Porphyrins are produced as part of the normal process that makes an important molecule called heme, which is required to transport oxygen.

The improvement transformed a catalyst that created two or three oxygen molecules per second to one that produces more than 100 per second — with a corresponding increase in the production of protons and electrons that can be used to create hydrogen fuel.

Increased glucose processing has long been thought to inflict damage on the mitochondria (the cell's power generators), which then produce large amounts of reactive oxygen molecules, which in turn leads to kidney disease.

PSII is a light harvesting system that splits water molecules to produce oxygen.

In an artificial photosynthetic system, the oxidation of water molecules into oxygen, electrons and protons (hydrogen ions) provides the electrons needed to produce liquid fuels from carbon dioxide and water.

Mononuclear cells from the blood were isolated during the OGTTs to analyze if these cells were producing molecules known as ROS (reactive oxygen species).

Cigarettes produce carbon monoxide, which, when inhaled, binds to the oxygen - carrying molecules in your body, depriving you of air.

Dr Kenneth Cooper, author of Aerobics, believes excessive exercise also produces unstable oxygen molecules called free radicals that cause harm to the body.

Many people believe that free radicals, the sometimes - toxic molecules produced by our bodies as we process oxygen, are the culprit behind aging.

Alcohol can also produce free radicals, which are unstable oxygen molecules that can alter DNA and cause cancer cells to develop.

The oxygen - containing molecules the body uses to produce energy can be highly reactive and can inadvertently cause damage to the mitochondria and even the cells themselves.

Free radicals are produced when a stable oxygen molecule in your body loses one electron, becoming unstable - a free radical.

Dr. Joe Kahn: CoQ10 is a very powerful antioxidant and because oxygen is being used in the mitochondria in the process of producing ATP energy molecule, the mitochondria is very sensitive to oxidant stress and CoQ10 is an anti-oxidant and about age forty we just start producing dramatically less and less CoQ10 every decade of our lives.

Sulfur dioxide (SO2): Produced when the sulfur in coal reacts with oxygen, SO2 combines with other molecules in the atmosphere to form small, acidic particulates that can penetrate human lungs.

In its stratosphere I conclude the important photodissociation reaction that of carbon dioxide with ultraviolet photons which produces oxygen atoms and carbon monoxide molecules.

For the important ultraviolet photons which are desired to be removed from the solar radiation are those less energetic photons which decompose the ozone molecules to produce another oxygen atom which again can reform another ozone molecule.

The first is to produce the oxygen atom from oxygen molecules.

If so, then you either disagree with the theory of combustion, that is, one atom of carbon burned in an excess of oxygen produces one molecule of CO2, or you believe there is some sort of vast conspirousy to make people think that much more fossil fuel has been burned than actually has been.

However, my main point was not so much about the «make up» of ozone but more about the possibility that as long as oxygen atoms and molecules absorb enough energy from UV radiation to alter their structure it may be that they also produce an increase in their heat content, which should be greater at any points nearest to the source — i.e..

The bionic leaf is able to split water molecules into hydrogen and oxygen and then with the help of hydrogen - loving bacteria, produce liquid fuels and potentially many other products.

Oxygen is produced through the splitting of water molecules during photosynthesis.