The most accurate way to measure your VO2 max is to do a ramp test while wearing a mask that measures the oxygen and carbon dioxide in the air you inhale and exhale. A ramp test usually involves ...

ABG test results show how well your lungs move oxygen and carbon dioxide in and out of your body, including: While most blood tests involve taking a blood sample from a vein, this test involves ...

One in three US adults don’t get enough iron, which has a major effect on getting oxygen around your body. Find out how this ...

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by ...

The second article in our series investigates why it is so hard to implement carbon capture in power generation and industry.

Sucrose is the regular sugar you use in iced tea or in baking. It is made from carbon, oxygen, and hydrogen atoms. Carbon dioxide is made from one carbon atom and two oxygen atoms. The molecules of ...

The atmosphere is mostly nitrogen (approximately 80%) and oxygen (approximately 20%). The remaining gases are found in much smaller proportions, such as carbon dioxide and water vapour.

This oxygen balance can be defined as the amount of oxygen, expressed in weight percent, liberated as a result of the complete conversion of the explosive material to carbon dioxide, water, sulfur ...

That splits the water molecules into oxygen and hydrogen ... caused even more carbon dioxide from the atmosphere to dissolve into the water. Captura plans to run a final test next year in Hawai ...

close respirationA chemical reaction that occurs in the mitochondria of cells in which glucose and oxygen react to produce carbon dioxide and water, releasing energy. Photosynthesis is one of the ...

Chonkus, a mutant strain of cyanobacteria seen here in a microscopy image, contains large white spots that appear to be carbon-dense granules. Those granules may explain why the cyanobacterium grows ...