Oxygen is used to break down energy which is then used in cells.
yes and no. the energy is stored in carbon bonds and and when the carbon bonds with O2 the energy not used in the new bonds is released.
cells require oxygen to burn sugar.
cells need oxygen to help burn the energy in food because the oxygen can take out all the energy needed
You don't lose it, you use it. Oxygen is used to burn the hydrogen of sugar and fats to generate the high energy phosphate bonds (ATP) that your cells need to do work. It's also used to "burn" the carbon in the fats and sugars, but you get no energy from that, only heat.
oxygen
No. They just take oxygen from the air.
It's a combination of mitochondria and cellular respiration. The mitochondria provide ATP energy, and the cell sort of breathes in some energy. Also, some cells burn oxygen or sugars.
There is no oxygen in space, so spacecraft must carry oxygen with which to burn their fuel and, if they are manned, to allow the crew to breathe.
oxygen
oxygen
There is no free oxygen in space, so they need to carry oxygen with them to allow their fuel to burn and, in the case of manned spacecraft, for the crew to breathe.
Lungs are an important part of the respiratory system in our body and it is because of lungs that we can burn the energy in our bodies. The oxygen and carbon dioxide in lungs is carried in or out of them with the help of blood vessels. This means that the blood vessels carry the oxygen to the body from the lungs and the carbon dioxide do the opposite thing. The red blood cells present in blood carry these respiratory gases and if there is inadequate blood supply to the lungs then the gases will not be absorbed properly. If the absorption of gases is faulty then the body will be deprived of the ability to burn energy, ultimately life.