This website uses cookies to ensure you have the best experience. Learn more

Photosynthesis And Its Discovery Essay

633 words - 3 pages

Photosynthesis
The Prentice Gallery Chemistry book defines photosynthesis as, “The procedure by which green plants and algae use radiant power from the sun to fuse glucose from carbon dioxide and water.” The glory of discovering photosynthesis does not belong to any one scientist, but rather numerous scientists contributed to refining the concept we now know as photosynthesis. Before describing the process of photosynthesis, I will provide a brief description of several of the important events that led to its discovery.
In 1643 Jan Baptista Van Helmont crafted an examination where he observed the development of a willow tree inside a plant pot. From this examination he surmised that a willow tree acquired its nutrients from the water it was supplied. Van Helmont erred by deducing that the physical development of all parts of the tree came solely from the water that he added over a five year sequence. However, he did ...view middle of the document...

The mouse eventually expired. Again he concluded this was the result of the “injured” air within the jar. He then observed that the “injured” air in the jar could be repaired by placing a plant within the jar. Although he didn’t realize exactly what had happened, he demonstrated that the plant was converting the carbon dioxide in the jar into oxygen.
The next scientist to contribute to the discovery of photosynthesis was a Dutchman, Jan Ingenhousz. In 1778 he duplicated Priestley’s examinations. Going further, he noted that submerged plants gave off tiny bubbles, but if he moved the plants into a shaded area the bubbles soon ceased. Ingenhousz designed a variety of experiments that led him to conclude that it was not heat but rather light that caused the existence of the bubbles. In a next step, he found that the accumulated bubbles re-ignited a glowing ember suggesting to him that the bubbles contained oxygen. Moving the bubble producing experiment into the shade allowed him to observe that the burning ember eventually extinguished meaning oxygen was not being created. This led him to state that in light plants produced oxygen but not in darkness.
Another scientist that contributed to the understanding of the process of photosynthesis was Jean Senebier. In 1796 he demonstrated that Priestly’s “injured” air was carbon dioxide. He also concluded that this carbon dioxide was used by the plants in the process of photosynthesis. Senebier determine that light caused the plants to take in the carbon dioxide and create oxygen. He further noted that, without the presence of carbon dioxide, the plants could not synthesis oxygen.
The last scientist I will discuss is a Swiss chemist and plant physiologist named Nicolas-Théodore de Saussure. In 1804, Saussure reconstructed van Helmont’s experiment mentioned previously. He carefully measured the quantities of both carbon dioxide and water that were given to the plant. He was able to conclude that the carbon added to the plant came from the carbon dioxide and that only the hydrogen came from the water. Thus, he demonstrated the increased mass of the plant was not solely from the water as van Helmont had previously incorrectly concluded.

Find Another Essay On Photosynthesis and its Discovery

The Influence of Light on Photosynthesis

1680 words - 7 pages ://hyperphysics.phy-astr.gsu.edu/hbase/biology/ligabs.html There was not a lot of information only on light and its role in photosynthesis. I don’t believe this goes into enough detail about light absorption. It doesn’t explain properly that it is the main source of energy for photosynthesis or that photosynthesis cannot occur with no light. The information given is correct however there is not enough of it. I got this information off a physics

Photosynthesis Essay

1004 words - 4 pages PHOTOSYNTHESISINTRODUCTION:In this coursework I'm going to investigate the factors that affect the rate of photosynthesis, but first am going to explain:1. What photosynthesis is?2.What the rate of photosynthesis is?3.And list the factors that affect photosynthesis.The aim of my experiment was to see whether intensity of light would affect the rate of photosynthesis in a plant. To do this, I placed a piece of Canadian pondweed in varying light

Light and Photosynthesis

1366 words - 5 pages -plants-need Plants need photosynthesis because it is what allows the plant to make food for its growth. This reaction takes place in the chloroplasts of the plant and it uses light energy, carbon dioxide and water. The end product after photosynthesis is oxygen and glucose, which are vital energy sources for the plant. Photosynthesis is a vital process for the plants survival. Plants derive their energy from photosynthesis. When seeds germinate, the

Photosynthesis Coursework

1201 words - 5 pages of results that as the light intensity increases so des the rate of Photosynthesis. I can also see that as the temperature gets to a certain heat that it peeks and gradually starts to drop, this is because it has reached its maximum temperature for photosynthesis to happen. I could have also done a more accurate experiment to find out the amount of oxygen given through photosynthesis. The experiment would need a stopper on the top of the conical

Photosynthesis

1124 words - 4 pages used and temperature. I think that as the light intensity is increased the rate of photosynthesis will also increase. But the light will reach a certain point where the rate will not increase any more. The chloroplasts will no longer be able to absorb any light so the rate will stay at its optimum level or even decrease. At this point light is no longer being absorbed. The graph of results will probably look

Bionic Plants Offer Superpowered Photosynthesis

865 words - 4 pages (Biello 2014)." The carbon nanotubes are still being tested on other types of chloroplasts such as cyanobacteria. Additionally, by enhancing the process of photosynthesis in the chloroplasts of algae, the viability of food, fuel and other commodities can be greatly increased. On a personal note, I believe that this is a very fascinating discovery that the world of science has made and results in both economic and environmental benefits if more

The Process of Photosynthesis

2904 words - 12 pages , which was discussed earlier in the paper, affects the rate of photosynthesis greatly (Figure 20). The light intensity, temperature and absorption all vary depending on the region and season the plant is in. This affects how quickly or slowly the plants can complete the process. Also carbon dioxide and its concentration affects the plants. Since CO2 is among the rate-limiting steps in the dark stage of photosynthesis, if you increase the

Carbon Dioxide Experiment in Photosynthesis

1531 words - 6 pages dioxide is really necessary for photosynthesis, and to see if a plant can photosynthesize at all with no carbon dioxide present in its environment even when it is still exposed to all the other factors that are too needed for photosynthesis. Review of literature 1. About.com: photosynthesis by Regina Bailey  Carbon dioxide, water and sunlight are used to produce glucose, oxygen and water. The chemical process is: 6 molecules of

An Investigation of Photosynthetic Electron Transport of Chloroplasts from Silverbeet Leaves

1075 words - 4 pages the initial stage of photosynthesis, in which solar energy is converted into potential energy. This reaction produces oxygen gas and converts ADP and NADP+ into ATP and NADPH.Among all living organisms on planet earth, only plants are capable of producing their own food and deriving energy from it. By producing energy, the plants supply all the necessary nutrients and energy directly/indirectly to the other living creatures. The production of this

Photosynthesis lab report

1787 words - 7 pages AbstractPhotosynthesis is a food making process for algae and plants. The photosynthesis process rate varies from different wavelengths and intensities of light. This lab will evaluate the optimal wavelengths and degrees of intensity during photosynthesis when chloroplast is exposed to light. The mixtures of DCPIP with water, PO4 buffer, and chloroplast will be prepared in a number of cuvettes. The cuvettes were tested individually at different

Comparison & Contrast between Photosynthesis and Cellular Respiration

1002 words - 4 pages stages: Light Reaction & Calvin Cycle. The process of photosynthesis begins when excited its electrons go into a primary electron acceptor (PEA). They are then passed onto a series of molecules known as the electron transport chain (ETC). The electrons eventually combine with a proton and NADP+ to form NADPH. Another process called chemiosmosis also occurs in the light reaction. Chemiosmosis is a process in which ATP (energy) is produced. So

Similar Essays

The Discovery Of Radioactivity And Its Effects

1189 words - 5 pages majority of people know of the effect of radioactivity but not how it was discovered and its close relation to physics. The discovery of radioactivity can also be referred to the dawn of the nuclear age. Many scientist, were interested in satisfying their curiosity and began to explore nature and the function of atoms. Marie and Pierre Curie was apart of the exploration, being a husband and wife team. Marie and Pierre Curie began their experiment

Recycle Water Irrigation And Its Effect On Young Olive Trees Nutrition Element Statues, Photosynthesis And Growth Under Two Irrigation Systems

1297 words - 6 pages irrigation system was more efficient in irrigation in this research. Key word: Recycle water, subsurface irrigation, Nutrition element Abbreviation: CW: clean water, RW: recycle water, SI: surface irrigation system, SLI: subsurface leakage irrigation, Ph: photosynthesis, E: evaporation, gs: stomata conductance, Introduction: Water shortage in arid and semi-arid regions and declining its availability to a crisis level throughout the world command that

Potential Of Discovery: The Robotic Fish And Its Potential

1681 words - 7 pages to the sensor tank. Further research is being completed to better adapt these robotic fish to open water where they will navigate freely. (Mitsubishi creates life-like robot fish 1) One of the newer and more advanced robo-fish in the world today is known as Charlie the Tuna. Measured at 52 inches in length and composed of 2,843 parts, 40 ribs, a set of tendons, a segmented backbone with vertebrae, and its Lycra skin, Charlie resembles a tuna

Essay

2382 words - 10 pages chloroplasts so both they may undergo both processes. However, animals and other heterotrophs undergo cellular respiration, but not photosynthesis. In a nutshell, the purpose of these processes is to convert free energy into ATP. Discovery of Photosynthesis The beginning of the discovery of photosynthesis began in the mid-17th century when J.B. Van Helmont carefully measured the mass of the soil used by a plant and the mass of the plant as