What processes are most directly involved in the cycling of carbon and oxygen between plants and animals in an ecosystem?

Plants and animals engage in the reverse of photosynthesis, which is respiration. In respiration, animals use oxygen to convert the organic carbon in sugar into food energy they can use. Plants also go through respiration and consume some of the sugars they produce.

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Which process gives off oxygen into the air?

respiration The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration. You can also ask what is biotic process of oxygen cycle? In the process of respiration oxygen is taken in by living organisms and released into the atmosphere, combined with carbon, in the form of carbon dioxide. Carbon dioxide enters the carbon cycle or is taken up by plants for photosynthesis.

Consequently, how does oxygen enter the atmosphere in the oxygen cycle?

Atmospheric oxygen comes mainly from green plants. When they're exposed to light, green plants use carbon dioxide from the atmosphere to manufacture living matter and release oxygen into the air. This process is called photosynthesis. What two processes are in nitrogen cycle? The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification.

Correspondingly, what are the two processes within nitrogen fixation?

Plants acquire these forms of "combined" nitrogen by: 1) the addition of ammonia and/or nitrate fertilizer (from the Haber-Bosch process) or manure to soil, 2) the release of these compounds during organic matter decomposition, 3) the conversion of atmospheric nitrogen into the compounds by natural processes, such as In which stage of cellular respiration is oxygen used? glycolysis Cellular respiration has three main steps: glycolysis, the citric acid cycle, and oxidative phosphorylation, where oxygen is used. Glycolysis is the first step in cellular respiration, and it occurs in the main compartment of the cell: the cytoplasm.