Cycles of Matter

Cycles of Matter

1. The Carbon Cycle

   • Most producers take in carbon dioxide from the air during food-making or photosynthesis.
   • Producers use it to make food.
     • They use the carbon that contain molecules such as sugars and starches.
       • When food is broken down, the consumers and producers release carbon dioxide and water into the environment.

2. The oxygen cycle

   • Producers release oxygen as a result of photosynthesis.
   • Most organisms take in oxygen from the air or water and use it to carry out their life processes.

3. Nitrogen Fixation

   • It is when free nitrogen is changed into usable nitrogen, performed by some bacterias.
     • Producers can use it to build proteins and other complex compounds.
     • Most of the nitrogen fixation is made of bacteria.
     • These bacteria live in bumbs and it is called nodules, on the roots of legumes.

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