Provide the balanced chemical reaction for cellular respiration. Ecosystems and Climate ChangeEcosystems on land currently absorb about 1/3 of humnan-made carbon emissions.This helps to reduce the effects of climate change. However, recent researchsuggests that land ecosystems could accelerate climate change.Plant cells undergo photosynthesis but they also undergo cellular respiration. Howfast photosynthesis and cellular respiration happen is dependent on temperature.Photosynthesis and cellular respiration don't speed up or slow down at the samerate.The balance between removing carbon dioxide from the atmosphere and addingcarbon dioxide to the atmosphere is important in the battle over climate change.Research was recently done to investigate how the rates of photosynthesis andcellular respiration might change as global temperatures change.The researchers gathered information from carbon monitoring stations around theworld. These stations monitor local daily temperatures and how much carbon wasexchanged between the atmosphere and the Earth. Using this information theresearchers were able to map changing photosynthesis and respiration rates totemperature, locally and globally.Below is a graph showing Enzyme Activity vs Temperature for photosynthesis bytrees, rice, and wheat (green line), sugarcane and corn (yellow line) and for plantcellular respiration. The optimal temperatures for photosynthesis and cellularrespiration are also recorded on the graph. The tipping point in ecosystems for thebalance between photosynthesis and cellular respiration occurs when there is morecellular respiration occurring than photosynthesis. 18°C28°CCORN PHOTOSYNTHESISRESPIRATIONTEMPERATURERight now, about 10% of ecosystems reach that tipping point for at least a littlewhile every year. If there is no change in carbon emissions and global temperaturesincrease as expected then by the year 2100 more than half of all land ecosystemscould be past that tipping point. The Amazon rainforest and the Taiga of Russia andCanada account for approximately 40 - 70% of the carbon pulled from theatmosphere by ecosystems on land. This means that the global tipping point whenland plants put more carbon dioxide in the atmosphere than they take in will occuraround 2040. It's possible that plants can adapt and the rate of photosynthesiscould increase with increasing temperatures but scientjsts don't think that 20 yearsis enough time.Other studies have found that oceans may be getting better at absorbing carbondioxide due to a decrease in churning up of the ocean water. Oceans currentlyabsorb 40% of the Earth's carbon dioxide. The best way to help is doing what wecan to reduce carbon emissions.ENZYME ACTIVITYPHOTOSYNTHESIS

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In plants, photosynthesis takes place that results in the formation of the glucose which the key…