experiment to show that is to process of photosynthesis
Answers
Expt.
The release of oxygen during photosynthetic process may be proved experimentally. A few branches of an aquatic plant, Hydrilla are kept in a big beaker full of the same pond water.
Thereafter, the branches are covered with a glass funnel, and a test tube full of water is inverted at the end of the funnel as shown in the figure. If required, a small quantity of sodium bicarbonate may be added in the water, so that the supply of carbon dioxide may become adequate for the photosynthesis. Now, the apparatus is kept in the sunlight
Observation:
The gas bubbles may be observed from the ends of the Hydrilla branches kept under the glass funnel in the beaker. These gas bubbles are accumulated in the end of the test tube inverted over the end of the funnel, and the water within the tube goes downward. On test the gas is to be proved oxygen