oxygen envolved during photosynthesis give a experiment
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Photosynthesis is an anabolic chemical process of green plants and it is a food synthesizing process. In this resource I have explained in detail how an experiment can be conducted to prove oxygen is evolved during photosynthesis process. Along with the experiment I gave some important questions as well as answers related to the experiment
Aim of the experiment:-To prove that oxygen is evolved in green plants during photosynthesis.
Requirements:-Hydrilla twigs, Beaker, a glass funnel, a Test tube, a beehive arrangement, pond water, a glowing splinter.
Procedure for the experimentTake a beaker and fill 3/4ths of it with pond water. Take some freshly cut Hydrilla twigs and insert them in the nozzle from below the stem of a glass funnel. Keep this funnel in an inverted position at the bottom of the beaker. A beehive arrangement is used in between the base of the funnel and bottom of the beaker. Now a test tube is filled with pond water and is inverted over the stem of the funnel. While making this arrangement one has to see the level of water in the beaker should be above the level of stem of the inverted funnel. The whole arrangement is kept on a flat surface under bright sunlight for some time.
Result of the experimentAir bubbles start moving from the cut end of the Hydrilla twigs and get collected at the upper end of the test tube. After some time we find some gas get collected at the top of the inverted test tube by downward displacement of water. To test the nature of the gas collected, the test tube is removed quickly from the stem of the funnel and the mouth is closed with the thumb. Now a glowing splinter is introduced into the test tube by removing the thumb from the mouth of the test tube. The glowing splinter immediately burst into a flame indicating that the gas collected in the test tube is oxygen.
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Aim of the experiment:-To prove that oxygen is evolved in green plants during photosynthesis.
Requirements:-Hydrilla twigs, Beaker, a glass funnel, a Test tube, a beehive arrangement, pond water, a glowing splinter.
Procedure for the experimentTake a beaker and fill 3/4ths of it with pond water. Take some freshly cut Hydrilla twigs and insert them in the nozzle from below the stem of a glass funnel. Keep this funnel in an inverted position at the bottom of the beaker. A beehive arrangement is used in between the base of the funnel and bottom of the beaker. Now a test tube is filled with pond water and is inverted over the stem of the funnel. While making this arrangement one has to see the level of water in the beaker should be above the level of stem of the inverted funnel. The whole arrangement is kept on a flat surface under bright sunlight for some time.
Result of the experimentAir bubbles start moving from the cut end of the Hydrilla twigs and get collected at the upper end of the test tube. After some time we find some gas get collected at the top of the inverted test tube by downward displacement of water. To test the nature of the gas collected, the test tube is removed quickly from the stem of the funnel and the mouth is closed with the thumb. Now a glowing splinter is introduced into the test tube by removing the thumb from the mouth of the test tube. The glowing splinter immediately burst into a flame indicating that the gas collected in the test tube is oxygen.
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Materials Required :
Beaker, water-plant cuttings, glass funnel, boiling tube.
Procedure :
1. Fill a beaker to about three fourth with. Water.
2. Place a few cuttings of water plant in it and cover them with a glass funnel. Fill a boiling tube with water cover its mouth with your thumb and place it over the stem of the funnel. Place the whole set up in the sunlight.
3. After some time bubble of gas starting from the leaves are found moving into the test tube.
4. When the test tube is filled with the gas remove it from the beaker.
5. Now bring a glowing splinter near its mouth.
Observation :
The splinter starts burning with a bright flame.
Conclusion :
This shows that the gas in the test tube is Oxygen and it is produced during photosynthesis in green plants.
Beaker, water-plant cuttings, glass funnel, boiling tube.
Procedure :
1. Fill a beaker to about three fourth with. Water.
2. Place a few cuttings of water plant in it and cover them with a glass funnel. Fill a boiling tube with water cover its mouth with your thumb and place it over the stem of the funnel. Place the whole set up in the sunlight.
3. After some time bubble of gas starting from the leaves are found moving into the test tube.
4. When the test tube is filled with the gas remove it from the beaker.
5. Now bring a glowing splinter near its mouth.
Observation :
The splinter starts burning with a bright flame.
Conclusion :
This shows that the gas in the test tube is Oxygen and it is produced during photosynthesis in green plants.
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