Title: Environmental Factors That Impact Photosynthesis - Video & Lesson Transcript | Study.com
Headings: Environmental Factors That Impact Photosynthesis
Environmental Factors That Impact Photosynthesis
Lesson Transcript
Photosynthesis
Factors Impacting Photosynthesis
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Content: The chemical reaction also produces oxygen, which is released back into the atmosphere. Plants get carbon dioxide from the air, water through their roots, and energy from sunlight. We learned that light intensity, carbon dioxide concentration, and temperature are the three main factors that impact photosynthesis. Greater light intensity leads to higher photosynthesis rates, as does increased carbon dioxide concentration. However, once light intensity and carbon dioxide concentration reach a certain level, photosynthesis rates level off and don't increase much further. In terms of temperature, plants will have an optimum temperature at which the photosynthesis rates are highest. If it's too hot or too cold, photosynthesis is slower. We also learned that water isn't considered a limiting factor, since when water levels drop, plants close their stomata, which are tiny pores on the outer, skin-like surface of plants that control gas exchange. In addition, if there was no water, plants in the area would die and photosynthesis wouldn't take place anyway. It's important to consider the aforementioned factors that impact photosynthesis, since they are all part of the ecosystem that keeps humans alive!