how to know from the experiment if the oxygen produced as a result of carbon fixation or electron transport?
my experiment result show that average bubble/min for tap water is 4.7 while NaHCO3 is 1.8.
im sorry but b4 this i already seacrh at the internet but i didn't found what i want.
so i hope there will be another answer coming on.
To determine if the oxygen produced is a result of carbon fixation or electron transport, you can compare the oxygen production rates in two different conditions: one with a carbon source, such as NaHCO3, and another without a carbon source, such as tap water.
In your experiment, you measured the average bubble per minute for tap water (4.7) and NaHCO3 (1.8). Generally, a higher rate of oxygen production suggests that carbon fixation is taking place because the fixation of carbon dioxide requires the consumption of ATP and NADPH produced during the light-dependent reactions of photosynthesis, which in turn drives the generation of oxygen.
Here's how to interpret your experiment results:
1. Tap Water (4.7 bubbles/min): This high rate of oxygen production indicates that photosynthesis is occurring, and carbon fixation is likely taking place. The presence of oxygen suggests that the light-dependent reactions, electron transport chain, and carbon fixation processes are all functioning.
2. NaHCO3 (1.8 bubbles/min): The lower rate of oxygen production compared to tap water suggests that carbon fixation may be limited in this condition. NaHCO3 (sodium bicarbonate) provides a source of CO2 for carbon fixation to occur, but the observed reduced oxygen production rate might indicate that other factors such as light intensity or availability of ATP and NADPH are limiting the carbon fixation process.
It is important to note that these results provide initial indications, but further experimentation and analysis are necessary to gain a more comprehensive understanding of the specific role of carbon fixation and electron transport in oxygen production.