what is the importance of PH in the experiment setup of photosynthesis
Answers
Answered by
0
In sunlight, it is observed that pH decreases (the water becomes more alkaline) as the pH sensors nears and enters the photosynthetically active coral tissue. In the dark, however, pH increases (the water becomes less alkaline or more acidic).
Photosynthetically active tissues uptake CO2 and release oxygen (O2), whereas in the dark the opposite occurs. The tissue, in the dark, is undergoing respiration so it uptakes O2 and releases CO2. CO2 dissolves in water to form carbonic acid that, in turn, dissociates into biocarbonate and hydrogen ions. As we know, pH is a measure of hydrogen ion concentration in a solution. Therefore, as CO2 reacts in water there will be a related increase or decrease in pH due to the increase or decrease in hydrogen ion concentration. By measuring pH in water near photosynthesizing organisms, we can indirectly assess whether photosynthesis is taking place.
Photosynthetically active tissues uptake CO2 and release oxygen (O2), whereas in the dark the opposite occurs. The tissue, in the dark, is undergoing respiration so it uptakes O2 and releases CO2. CO2 dissolves in water to form carbonic acid that, in turn, dissociates into biocarbonate and hydrogen ions. As we know, pH is a measure of hydrogen ion concentration in a solution. Therefore, as CO2 reacts in water there will be a related increase or decrease in pH due to the increase or decrease in hydrogen ion concentration. By measuring pH in water near photosynthesizing organisms, we can indirectly assess whether photosynthesis is taking place.
Similar questions