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The Production of Oxygen in Photosynthesis

These bubbles might be what the plant produced that purifies air fouled by animals or candles.

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The Production of Oxygen in Photosynthesis ..

Introductory school investigations of photosynthesis include the evolution of oxygen by Canadian pond weed (Elodea canadensis), Cabomba caroliniana* or Ceratophyllum demersum, or testing for starch in Pelargonium leaves that have been decolourised. Both methods are difficult to quantify, and the second method often misleads students.

To improvw this I should be using fresh autotrophic pondweed to produce oxygen first time around.

Animals that consume plants also make use of this energy, as do those that consume those that consume plants, and so on to the top of the food chain.

As important a job as making all of the world's food is, there's another vital function that photosynthesis performs: It generates the oxygen that oxygen-breathing animals need to survive.

Demonstrating Oxygen Evolution During Photosynthesis …

The initianal pondweed used for some of the experiments did not produce any oxygen so the  had to be redun.

Bubbles

5

14

10

8

15

6.5

20

5

25

3.5

Conclusion: The most bubbles were produced when the light intensity
was 5cm away from the pondweed which means more oxygen is produced
which suggests that the more light focused on the pondweed the more
photosynthesis will occur and the photosynthesis occurred very fast on
that measurement which also prooves my prediction was correct.

Apart from oxygen supply, glucose synthesized by means of photosynthesis is source of energy for living organisms, and is circulated in the food chain.

Measuring photosynthesis via the production of oxygen

When 10
cm away from the lamp photosynthesis was till occuring as quite a few
oxygen bubbles were being produced but not as much as when the
pondweed was closer to the light source.

Thus, in this process, six molecules of carbon dioxide and six molecules of water react in presence of sunlight to produce one molecule of glucose and six molecules of oxygen.

The final product of this process, i.e., glucose is stored in the complex molecular structure of the plant cells.

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  • Video clip - Production of oxygen in plants

    The oxygen produced for both tests for the 20cm distance were the same which shows that the results were correct.

  • How is oxygen generated in photosynthesis

    The simple carbon sugars produced by photosynthesis are then used in the forming of other ..

  • One of the most beneficial byproducts of photosynthesis is oxygen

    The behavior of the glowing piece of wood showed that the gas produced by the plants was oxygen.

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One of the important waste products of photosynthesis is oxygen gas

If you have a brief idea about the required raw materials and the products of this process, you will easily understand the chemical reactions.

In photosynthesis, carbon dioxide is used as a substrate base for producing glucose and oxygen with the help of light energy and water.

During Photosynthesis Oxygen Is Produced

Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration, or converted into starch and stored. Oxygen is produced as a by-product.

How is Oxygen Produced in Photosynthesis? | Yahoo …



These kinds of observations led Priestley to offer an interesting hypothesis that plants restore to the air whatever breathing animals and burning candles remove - what was later coined by Lavoisier "oxygen".

In these experiments, Priestly was the first to observe that plants release oxygen into the air - the process known to us as .

Repeat Joseph Priestley's Experiments:







Oxygen Experiments




Who Discovered Oxygen?

What plant produces the most oxygen? - ResearchGate



Repeat Joseph Priestley's Experiments:







took Priestley’s work further and demonstrated that it was light that plants needed to make oxygen (oxygen was discovered a few years earlier, in 1772 by ).

However, Jan Ingenhousz was the first person to show that light is essential to the plant process that somehow purifies air fouled by candles or animals.

Experiment Form 8: Is oxygen produced during photosynthesis

So the hypothesis that water is the nutrient used by plants was rejected.

Repeat John Woodward's experiment:




In August of 1771, , an English Chemist, put a sprig of mint into a transparent closed space with a candle that burned out the air (oxygen was not discovered yet) until it soon went out.

PHOTOSYNTHESIS - Estrella Mountain Community …

The roots of a plant also need oxygen which they obtain from the air spaces in the soil. If you give too much water to a plant in a pot you could kill the roots by drowning them! Plants, such as rice, which normally grow in wet soil often have air spaces in their roots. This is so that they can carry air from the atmosphere down to the root tips to be able to respire under water.

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