In photoautotrophic cells under light conditions, what proportion of the total ATP is generated within the chloroplasts, as a rough estimate or within a lower and upper bound, and what proportion is produced in the mitochondria? Please introduce any references you know. Thank you!
In photoautotrophic cells, the majority of ATP is generated within the chloroplasts during photosynthesis. However, a significant portion of ATP is also produced in the mitochondria through processes like oxidative phosphorylation during cellular respiration.
Estimates vary depending on factors such as the specific organism, light intensity, and metabolic activity. Roughly, it's suggested that about 80-90% of ATP is generated within the chloroplasts during photosynthesis, while the remaining 10-20% is produced in the mitochondria through cellular respiration.
One reference for this estimation is a study published in the journal Plant Physiology titled "Chloroplast ATP Synthase Modulation of the Thylakoid Proton Motive Force: Implications for Photosystem I and Photosystem II Photoprotection." Additionally, textbooks on plant physiology and biochemistry often discuss the distribution of ATP synthesis between chloroplasts and mitochondria in photoautotrophic cells.
Thank you, Rithvik Chalasani, for offering the reference. However, I was unable to locate information regarding the rate of ATP production in chloroplasts compared to mitochondria. Could you please provide the source of the percentages you mentioned? Additionally, I'm curious about the methods used for their estimation or measurement.
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