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IB Biology Extended Essay Photosynthesis Candalus Thylakoids, add self observations Abstract An abstract is an abbreviated summary of a research article, review, or any in-depth analysis of a particular subject or discipline, and is often used to help the reader quickly ascertain the paper s purpose.
When used, an abstract always appears at the beginning of a manuscript, acting as the point-of-entry for any given scientific paper or patent application.
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Introduction The subject of my Extended Essay is the "Effects of light intensities on plant photosynthesis measured by the volume of oxygen produced". I intend to observe the volume of oxygen emitted by Elodea pond weed proportional to the differences in light intensities.
After reading up on plant photosynthesis and rate of reaction from sunlight, I came to the conclusion that my hypothesis may be supported, I expect that there will be a big difference between the volume of oxygen produced from the pondweed in direct sunlight between the hours of For the analysis of photosynthesis I intend to record the volume of gas produced during a given amount of time, in this case a week, by using accurate measuring device such as a upside down measuring cylinder measuring the number of centimeters squared of gas produced on a given day in a consecutive 7 day week.
All green plants must make their own food, this is carried out in a process called photosynthesis.
For photosynthesis to occur they need sunlight energy. This energy is absorbed by a green pigment called chlorophyll, which is mainly found in the leaves of trees but also in aquatic plants.
This energy then combines with water molecules from the soil and carbon dioxide from the air. Because of this a sugar called glucose is made and also oxygen.
For my experiment I have chosen to use light types as my variable. I will be keeping light the same throughout the experiment in its different forms, Lamp, Sunlight, and Darkness. The word and scientific equation for photosynthesis is: This intern leads to the molecule producing a electron.
The process is called 'Phosphorylation'. Due to the chlorophyll lacking an electron, it takes up an electron from the water. The equation is as follows: Hydrogen is combined to carbon dioxide using ATP for the energy.
The equation can be shown as: During the Light Dependent reaction, the suns energy is caught by the chlorophyll molecule, this happens as oxidation. Energy in the form of a photon is required to increase the energy levels of electrons which move out of the chlorophyll during oxidation.
This reaction requires light for it to take place, where it occurs on the thylakoid membranes.Jan 25, · An extended essay involves great research, dedication, critical thinking and experimentation to be able to test and prove your stance.
You need to think of an existing theory or come up with one and find relevant data to prove it. Biology extended essay experiments with baking.
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Nba east vs west comparison essay chopin. Apr 15, · Assuming this is your Extended Essay and you've already decided biology (and not your biology Internal Assessment), you have a couple choices. You can conduct an experiment and write it like a lab report, you can discuss the historical relevance of certain scientific theories, or you can use data online and analyze that.
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Rewarding, fun and challenging describes extended essays in Biology. Introduction to EEs at DCS How about this for a starter - if 12 year olds can publish scientific papers you can too.
Student Guide: Extended Essays in Biology Overview An extended essay in biology provides you the student with an opportunity to apply a range of skills while researching a topic of personal interest in the field of biology.
The nature of an extended essay in biology is .