Question
The set up below represents an experiment to investigate the process of photosynthesis. The set-up was placed in light for six hours.
(a) Why was sodium hydrogen carbonate added to water in this experiment?
(b) Explain why the number of bubbles reduced in the evening.
(c) Explain why water was used in this experiment.
(a) Why was sodium hydrogen carbonate added to water in this experiment?
(b) Explain why the number of bubbles reduced in the evening.
(c) Explain why water was used in this experiment.
Answer
(a) To add carbon (iv) oxide to the water;
(b) Due to decrease in rate of photosynthesis due to decreased light intensity ;
(c) To provide an aquatic environment for the water weed.
(b) Due to decrease in rate of photosynthesis due to decreased light intensity ;
(c) To provide an aquatic environment for the water weed.
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