what happens when oxygen present
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What Follows Glycolysis if Oxygen Is Present? In the absence of oxygen, the pyruvates are fermented into lactate, which recycles NADH into its oxidizing form, NAD+. If oxygen is present, the cell can reap much more energy through the oxidative decarboxylation of pyruvate and the citric acid cycle. Pyruvate at the Crossroads A cell can use the product of glycolysis, pyruvate, in several metabolic pathways besides decarboxylation.
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Biology, Eighth Edition (Raven) Bonds between oxygen and hydrogen share electrons unequally, the electrons are much more closely associated with the oxygen. This is a lower energy state. When wood or gasoline is burned oxygen gas (O2) reacts with the carbon-hydrogen rich molecules.
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Science In nature, oxygen is released from plants and sea plankton during photosynthesis. Oxygen floats upward into the atmosphere and in turn is converted into ozone by ultraviolet radiation. This blocks out the harmful UV b rays that cause skin cancer. The production of ozone is dependent on the amount of the sun’s energy.
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- Ozone (03) is free oxygen (02) plus an extra atom of oxygen. When it comes into contact with water, this extra atom of oxygen splits off very easily. Water (H20) combines with the extra atom of oxygen and becomes hydrogen peroxide (H2O2).
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Know Your Oxygen Needs As you climb higher into the atmosphere, the partial pressure of oxygen decreases. This means that the number of oxygen molecules in each volume of breath decreases and many of the hemoglobin molecules that normally deliver oxygen to the cells travel empty. Gradually, you’ll experience increasing levels of hypoxia -- a word of Greek origin that means a lower-than-normal amount of oxygen.
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Oxygen Oxygen (O) is a chemical element. In nature, oxygen is a gas with no color or smell. Oxygen is a very important element because it is a part of the air people breathe and the water people drink. Because of this, oxygen supports life.
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Scientific FAQ Oxygen passes out of the red blood cells and into the plasma to be transferred to the cells that need oxygen for the metabolic process. These cells then pass CO2 back into the plasma that is picked up by the red blood cells in the exchange. Oxygen is almost always present in the plasma as it travels though the body.
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- Oxygen concentrations are much higher in air, which is about 21% oxygen, than in water, which is a tiny fraction of 1 percent oxygen. Where the air and water meet, this tremendous difference in concentration causes oxygen molecules in the air to dissolve into the water.
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Solar Radiation & Photosynthetically Active Radiation General Information about Low Dissolved Oxygen. Oxygen is a byproduct of photosynthesis, the process by which plants make their cell material (from sugars) from water and carbon dioxide in the presence of sunlight. In general, oxygen is used by fish, animals, bacteria, fungi, and plants to break down organic matter and sugars. Animals, bacteria, fungi and fish use oxygen to break down organic material that they get by eating plants or other animals, bacteria, fungi and fish.
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- Each oxygen atom has 6 valence electrons in its outer energy level. When two oxygen atoms get close to each other, the attractions from the nucleus of both atoms attract the outer electrons. In this case, two electrons from each atom are shared.
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The human body is about two-thirds oxygen The enzyme uses oxygen to catalyze many oxidation reactions in the body (metabolism). Carbon dioxide, a waste product, is released from the cell and into the blood, where it combines with bicarbonate and hemoglobin for transport to the lungs. Blood circulates back to the lungs and the process repeats.
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- 2H2O2 ----> 2H2O + O2. This reaction is important to cells because hydrogen peroxide (H2O2) is produced as a byproduct of many normal cellular reactions. If the cells did not break down the hydrogen peroxide, they would be poisoned and die.
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- This allows the hemoglobin inside them  to bind oxygen from the air. The red blood cells then circulate  around the body. When they reach a body part that is low in oxygen,  it automatically drops off their hemoglobin. This way, red blood  cells supply the entire body with oxygen.
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Why does breathing pure oxygen kill you? Breathing pure oxygen kills you because it destroys the normal gas balance with CO2 (carbon dioxide) in the lungs required for effective oxygenation on the cellular level. That's why some modern lifesaving applications prefer using Carbogen instead of pure Oxygen. Carbogen is a 95:5 mixture of O2 and CO2.
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- Oxygen occurs uncombined (as one of a mixture of gases) in air, but it also readily combines (reacts) with a wide variety of other elements to make compounds. Indeed, oxygen is among the most reactive of all the elements. For example, nearly allthe rocks of the Earth are compounds containing oxygen.xygen in water. In the past, oxygen atoms combined with hydrogen atoms to form water. Oxygen is a much more massive element than hydrogen (the atomic weight of hydrogen is 1, that of oxygen is 16). As a result, oxygen makes up about nine-tenths of the mass of the oceans.
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Oxygen: reactions of elements Reaction of oxygen with water. Oxygen gas does not react with water. It does, however, dissolve to the extent of about x g kg -1 at 20°C (297 K) and 1 atmosphere pressure.owever the effect of ultraviolet light upon oxygen gas is to form the blue gas ozone, O 3, the second allotrope of oxygen.
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- When ultra violet light hits diatomic (normal) oxygen, it causes a photochemical reaction that splits the molecule into the two atoms: + UV light —> O + O. If there is a non-reacting species (M) present, it can allow another reaction to take place: O + + M —> + M. So from two diatomic oxygen molecules we can create one triatomic ozone molecule.
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Oxygenate your body - How to restore oxygen balance and help prevent disease How Oxygen Is Utilized in the Body Oxygen utilization is a highly complex process in the body, but the simpler version goes something like this: When we inhale, oxygen from the air we breathe is diffused through membranes and into red blood cells. The oxygen-rich blood then circulates throughout the body and finds tissues in need of oxygen. Enzymes in the body combine with the oxygen molecules and initiate many metabolic (i.e., oxidative) processes in the body. One of the waste products of oxidation is carbon dioxide, which is then released from the cells into the blood.
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- However, if the atmosphere had too much oxygen in it, then animals would most likely … be deprived of the other gases and inhale mostly oxygen; pure oxygen can, in fact, be harmful to the body and cause damage. Some animals could survive in such an oxygen-rich atmosphere, but not that many.
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Overview Under these conditions, your lungs can gather more oxygen than would be possible breathing pure oxygen at normal air pressure. Your blood carries this oxygen throughout your body. This helps fight bacteria and stimulate the release of substances called growth factors and stem cells, which promote healing.
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- Therefore, oxygen needs to gain two electrons to add to its six. When electrons are added to a particle, there is an overall negative charge due to the imbalance between the positive (protons) and the negative (electrons). Negative ions are called anions.
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Chemical Bonding What happens if a bond is formed between atoms like oxygen, which is highly electronegative, and hydrogen, which is not? The oxygen atom tends to pull the shared electrons over to its side of the bond more often than the hydrogen atom does, resulting in polarity, or a partial separation of charge between atoms.
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- This happens because the temperature at which oxygen changes from a gas to a liquid is about 13 degrees Celsius above that of nitrogen. The oxygen can be seen dripping from the can just as on a humid day you can see drops of water condense and drip from a can you take from the refrigerator.
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Why Oxygen is poisonous for organisms ? Oxygen is usually poisonous to these organisms as they cannot yield energy with an aerobic environment as the oxygen disrupts the fermentation of sugar. Source(s): B of Medical Science Student-Major in Biomedical Science. vpr-2nv · 6 years ago.
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deoxyhemoglobin When oxygen binds to at least one of the heme groups (as happens in the oxygen-rich lungs), all of the heme groups become exposed to the environment and bind oxygen easily. The bond between oxygen and heme is a loose one, however, so that the oxygen can break free in the tissues, where the concentration of oxygen is relatively low, and thereby become available for use in the cells.
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If oxygen gas is not present what happens after glycolysis? Best Answer: If oxygen is present, the cell goes into the Krebs cycle which produces some NADH and FADH2 which in turn are used to produce a total of 36 ATP ...