Photosynthetic organisms produce oxygen based on whether light is available for photosynthesis. These organisms also consume oxygen for cellular respiration in both light and dark environments. In three to five sentences, explain how these conditions relate to gross and net productivity.
Thank you! There are 17 questions to this test for 9th grade biology. This one is question 15.
The availability of light directly impacts the photosynthetic process in organisms. In the presence of light, photosynthetic organisms can produce oxygen through photosynthesis, contributing to their gross productivity. In both light and dark environments, these organisms still consume oxygen through cellular respiration, which is necessary for their metabolic processes, resulting in their net productivity. The net productivity is calculated by subtracting the oxygen consumed during respiration from the oxygen produced during photosynthesis.
