Autotrophs participate in the carbon cycle by fixing carbon dioxide ... sedula was grown on a mixture of hydrogen, oxygen and carbon dioxide, the enzymes that are required for the conversion ...

This process, called photosynthesis, is essential to the global carbon cycle and organisms ... cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen.

Carbon atoms move around the planet in a process known as the carbon cycle ... NASA Carbon dioxide is necessary for plants to grow, perform photosynthesis, and produce the oxygen we breathe.