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THE CARBON CYCLE-part 2 Carbon Cycle The same carbon atoms are used over and over on earth. They cycle between the earth & the atmosphere. How does Carbon get back to the Atmosphere? Animals Eat Plants When organisms eat plants, they take in the carbon from the plant. Some of it becomes part of their bodies. Some of it will be released to the atmosphere. How does Carbon get back to the Atmosphere? This process is called “Respiration!” Equation: Food + Oxygen Carbon Dioxide + Water C6H12O6 + O2 CO2 + H20 How does Carbon get back to the Atmosphere? The Goal of “Respiration” is to break down glucose & release energy for cell processes. All living organisms need energy, & all living organisms do respiration… even plants!!! Where does Respiration happen in a cell? Respiration happens in a structure in the cell called the mitochondria. What happens when Plants & Animals Die? When plants and animals die, most of their bodies are decomposed by decomposers. What happens when Decomposers Eat Plants & Animals? Decomposers also do respiration & release more carbon atoms (CO2) to the atmosphere.