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photosynthesis short essay

Short Essay on Photosynthesis

photosynthesis short essay

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All organisms depend ultimately upon green plants as a source of organic nutrients.. This process occurs whenever radiant energy is received by chlorophyll molecules. By a series of energy- transformations carbon dioxide and water are combined in the production of carbohydrates and oxygen. A net reaction can be written as follows, using glucose as the carbohydrate.

For many years after the raw materials and end products of photosynthesis were known, it was thought that carbon and oxygen separated during the process, in such a reaction, carbon would attach to water, and oxygen would be released.

It was supposed further that the unit was “multiplied” in some fashion to form sugars. As is so often the case in scientific matters, however, the most attractive, plausible, or popular hypothesis does not always turn out to a be a fruitful one.

During the 1930’s, it was demonstrated that some bacteria carried on photosynthesis without the liberation of oxygen, and in the early 1940’s, studies using readiosotopic tracers indicated that in green plants liberated oxygen did not come from CO.

This was accomplished by incorporating “heavy” oxygen into water molecules and tracing it throughout the process. Contrary to the earlier idea, it was found that the oxygen of H 2 0, not that of CO z , became the O, liberated during photosynthesis. About the same time, the biochemist Robert Hill found that exposure to light of green cells in a test tube in the presence of hydrogen acceptors resulted in the liberation of oxygen, but no carbohydrate was synthesized. A little later, it was shown that carbohydrate synthesis would occur in the dark within green ells if they had previously been exposed to light.

Thus, it became obvious that photosynthesis involved two phases: the light, or photo, phase and the dark, or synthetic, phase. We shall discuss these in order. The chlorophyll molecule is so constructed that it can absorb “packets” of light. In the process of doing so, certain of its electrons become energized and actually leave the molecule. The energized state of the electrons represents the transferred radiant energy.

This process of electron separation leaves the chlorophyll molecule in an ionic state. Eventually, electrons will return to the molecule, but only after their energy of excitation has been transferred elsewhere.

Apparently, there are two possible pathways, or cycles, by means of which the electrons may get back to the chlorophyll molecules. Both of these cycles involve oxidation-reduction reactions, and as the electrons are transferred from one acceptor to another, they pass to lower energy levels. In the process, the “excess” energy of the electrons is transferred into high-energy phosphate bonds when ADP is phosphorylated to ATP.

Thus, the electrons return to the chlorophyll molecule in a low-energy state, and the oxidized chlorophyll is in a condition to be reduced again. The ATP thus formed may be used as the phosphorylating agent in the synthetic reactions of photosynthesis.

The cyclic pathways of electron transport outlined above constitute only a part of the light phase of photosynthesis, and it should be noted that the electrons removed initially from chlorophyll are eventually replaced. It should also be noted that in these cyclic pathways the water represented in our initial equation is not involved. Rather, flavins and cytochromes as well as a substance known as vitamin K transport the electrons.

These cyclic pathways leading to the production of ATP are considered to be minor when compared to the entire process of photosynthesis. Furthermore, green plant cells also can on respiration, discussed in a alter topic, in which a relatively high yield of ATP is achieved. Thus, ATP production in the cells is by no means limited to the light phase of photosynthesis.

At this point, let us return to a consideration of the overall photosynthetic equation. It should be apparent now that the products of the reaction, oxygen and carbohydrates, are formed by the splitting of water molecules.

Thus, the hydrogen so released reduces the carbon dioxide to carbohydrate, and molecular oxygen is produced. Here again, we are involved in an oxidation-reduction, but one which is highly unlikely from a thermodynamic viewpoint. The problem is this: a weak oxidant must oxidize a weak reluctant producing a strong oxidant and a strong reluctant. In other words, the C0 2 and H 2 0 are much more stable than the 0 2 and the carbohydrate.

Carbon dioxide joins a five-carbon sugar, rib lose diphosphate, which is already present in the cell, to form a very unstable six-carbon compound. The six-carbon compound has a very brief existence; almost immediately it breaks down spontaneously into two molecules of a three- carbon compound, 3-phosphoglyeerie acid. Each molecule of PGA is then reduced to the aldehyde form, phosphogylceraldehyde, by NADP.H 2 with the aid of a molecule of ATP.

Thus, it is at this point that the products of the light phase enter into the reduction of carbon dioxide. PGAL is now at the reduction level of a carbohydrate which corresponds to that of an aldehyde, and it may travel any of several different pathways.

It may undergo a series of reactions and eventually be transformed to RDP, it may become modified into glycerol, or it may undergo condensation to form the six-carbon sugar fructose diphosphate, which can undergo dephosphioiylation and certain internal transformations to become glucose. Glucose may then serve as a building block for such saccharine sugars as sunrise or such polysaccharides as starch.

Although PGAL might justly be considered the end product of photosynthesis. PGA is frequently involved in transformation. It may proceed along a pathway leading to the formation of amino acids, which subsequently become involved in protein synthesis, or it may become involved in the formation of fatty acids, which join with glycerol in the formation of fats.

Notice that this scheme shows the entrance of carbon dioxide and the products of the light phase into a cycle involving the compounds we have discussed. Although we have mentioned only a few of the many possible synthetic pathways taken by PGA and PGAL, it should be obvious that the basic organic molecules which serve as nutrient materials for cells of green plants themselves and for the cells of other organisms are produced in photosynthesis.

In summary, photosynthesis is an extremely complex process involving many separate reactions. Like virtually all reactions which within occur living systems, they are catalyzed by a complex of specific enzymes. Although the light and dark phases of photosynthesis can be separated experimentally, they are closely interrelated in the overall metabolism of any given photiosynthetic cell.

In addition to photosynthesis, the plant cell carriers on respiration, during which large amounts of ATP are formed, and this ATP supplies energy for many of the synthetic reactions we have mentioned. In other words, the ATP formed during the light phase of photosynthesis is not nearly sufficient to drive the many endergonic reactions carried on in the plant.

Nevertheless, our original equation is accurate as a summary equation, because every energetic reaction is driven by energy which is ultimately supplied by sunlight.

Synthesis common to all cells there are numerous compounds not obtained by cells as prefabricated nutrients; rather, they are synthesized within the cells themselves. These are primarily the organic macromolecules which constitute the bulk of cell contents exclusive of water.

In all cells except the photo synthetic cells discussed above, and the chemosynthetic bacterial cells mentioned previously, the raw materials employed in synthetic reactions comes from the digestion of prefabricated materials taken into the organism. The energy necessary to drive these endergonic reactions also comes from these prefabricated materials, in their respiration.

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Short Essays On Photosynthesis

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Photosynthesis Essay Example

Photosynthesis essay introduction.

Photosynthesis is the combination of sugar from light, carbon dioxide and water with oxygen being a waste product. This process is possibly the most important biochemical path known. Nearly everything in our everyday lives depends on this process, we would not be alive right now if it weren’t for this cycle, this is due to the fact that us humans breath in oxygen and breathe out carbon dioxide, with plants it is the opposite; they take in carbon dioxide and take out oxygen, which we breathe in making it extremely important for us to have plants in order to respire.

The process of photosynthesis is a very complex process.Here is a picture of an ordinary leaf. The leaf plays a major part in the process of photosynthesis, as it takes in the light which is later on made to glucosePhotosynthesis uses the energy of light to make glucose which keeps the plant alive. Just like we eat food to keep us alive and healthy, plants use the energy of the sun and water in order to stay alive and healthy.

Plants use the energy of light to make glucose to stay alive. Below is the general equation for the process of photosynthesis:6 CO2 + 6 H2O + light � C6H12O6 + 6 O2Carbon Dioxide + Water + Light energy � Glucose + OxygenThe rate of photosynthesis depends on four factors: carbon dioxide, light intensity, chlorophyll and water (or other photosynthetic pigments). In order to find out the importance of these factors for photosynthesis, some experiments are carried out.

photosynthesis short essay

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Aim: My main purpose or aim of this coursework is to find out whether photosynthesis relies on all factors or whether the process can function without the use of sunlight or carbon dioxide or water etc.Factors that may affect photosynthesisThere are five main factors that may affect the rate of photosynthesis they are:1. Light intensity2. Co2 concentration3. Effect of chlorophyll4. The effect of temperature (main chosen coursework factor)The experiments and how to undergo them1. Light IntensityThe aim of this experiment is to find out whether or not the intensity of light would affect the rate of photosynthesis in a plant. To do this, I used a piece of foil which had a triangular shape in the middle of it and masked it on a plant where their was an exposed region and a shaded region.After three hours the leaf was picked, observed and tested with iodine solution, following is the result.ResultWe can clearly see that the masked area has turned brown whilst the unmasked area has turned dark blue.EvaluationThe masked part had given us a negative result to the iodine test which proves that there is no photosynthesis occurring if their is no light. Starch is available in the exposed region. This proves to us that photosynthesis can be carried out in the presence of light.ConclusionDuring this experiment we have concluded that photosynthesis almost mainly depends on the presence of light. If there is no light resource available photosynthesis will not occur forcing the plant to die.2. Carbon dioxide concentrationThe aim or purpose of this experiment is to prove that photosynthesis cannot function without carbon dioxide. The experiment will be as follows.Two pots of the same type of plants are prepared inside plastic bags, both are kept in the same temperature with the same light intensity, the only difference is that soda lime has been added to plant A whilst there is no soda lime in plant B.Plant APlant BAfter three hours, the leaves where picked up, observed and tested with iodine solution. Below are the results.Plant APlant BResultPlant A remains brown whilst plant b has turned to dark blue.EvaluationIn plant A the soda lime has absorbed most of the carbon dioxide. In the absence of carbon dioxide the iodine test is negative. Starch is not produced throughout the experiment which proves that photosynthesis cannot take place without carbon dioxide. This means that carbon dioxide is one of the factors that are needed for photosynthesis. However in plant b, carbon dioxide is present in the plastic bag. The plant can produce starch which the iodine test has proved to us as it scored a positive score.3. Effect of ChlorophyllMy aim here is to find out whether chlorophyll affects the rate of photosynthesis or not. To do this I will carry out the following experiment.A pot of variegated plant is destarched by putting into a dark environment for one to two days before the experiment. A variegated leaf is used for testing because part of the leaf contains chlorophyll (or other photosynthetic pigments) while the rest does not. One of the variegated leaves is selected and exposed to light.After three hours the leaf is picked up, observed and tested with iodine solution, the result is shown in the following diagram.ResultThe non-green region of the leaf has remained brown, whilst the green region of the leaf has turned dark blue.EvaluationStarch is present in the green region. This proves that photosynthesis can be carried out in the presence of chlorophyll. While the non-green region gives a negative result to the iodine test. This experiment has proved to us that chlorophyll does affect the rate of photosynthesis.4. The effect of temperatureThis is my main chosen point of interest throughout the coursework.AimOur main aim is to find out whether temperature affects the rate of photosynthesis in a Canadian pondweed (this is a picture of Canadian pondweed).ApparatusTo undergo the experiment we needed the following items and apparatus:1. Sprigs of pondweed2. Boiling tubes filled with water3. Lamp4. Thermometer5. Ice6. Supply of constant hot water7. Tissues8. Ruler9. Beaker10. Bubble counter11. Scissors12. Tweezers13. TimerSafetyAlthough this experiment may seem harmless we must take full precautions at all times to avoid any injury possible, below are some things we should bare in mind whilst performing the experiment to avoid serious damage or injury: Hot water can cause serious injury therefore we must be very wary and attentive to where we pour it. Scissors can also cause injury hence we should only stick to the task of cutting the pond weed not your partner’s hair. The lamp is supplied by electricity and we are dealing with water in this experiment, splashing water around could cause an electric shock.Following these safety tips will lead to a happy learning injury free environment.PredictionAccording to my knowledge and understanding of this experiment I strongly believe that temperature affects the rate of photosynthesis.I also predict that 30�C should be the best temperature for the pondweed to photosynthesize, this is because I believe that this temperature is neither to hot nor too cold for the pondweed, hence it produces more bubbles, which represent oxygen.ResultsTemp. �CExperiment 1Experiment 2Experiment 3Average125845.6672018161516.333034363836401491111.33501000.333AnalysisAccording to our results in we can clearly see that 30�C is the best temperature for photosynthesis to take place. We know this because out of all the other four temperatures, 30�C is the most temperature that has produced the most bubbles. This is due to the fact that this temperature is neither too hot nor too cold it is the ideal temperature for photosynthesis to take place. Both 20�C and 40�C half produced approximately half the bubbles that 30�C has produced, both temperatures have produced a decent number of bubbles but both are not as effective as 30�C this is because 20�C is slightly cold which makes it more difficult for the pondweed to produce bubbles. 40�C was not as effective as 30�C because the temperature 40�C is somewhat hot and is not ideal for photosynthesis to take place in as the results have proven.The results have proven that 12�C is a temperature that negatively affects the rate of photosynthesis. It has been proven in the results to have released a low amount of bubbles during all 3 experiments; this is because this temperature is very low, too low for the pondweed to produce bubbles because it is too cold it may even die because of the cold temperature.We can clearly see from the result that out of all the five different temperatures 50�C was the least temperature to produce bubbles. This is because this temperature is very hot, too hot for the pondweed to produce bubbles. These temperatures may be to hot for the pondweed to take, resulting in the pondweed dyeing hence it produces little or no bubbles.ConclusionAfter analyzing, looking and observing our results we have concluded that 30�C is the best temperature for photosynthesis to take place in plants. This is because this temperature is not too hot nor too cold for the plant to photosynthesize.We have also concluded that temperature does affect the rate of photosynthesis in a plant. As we have tested the rate of photosynthesis at different temperatures and have come to realize that it plays an impact on the rate of photosynthesis which is represented in bubbles in this experiment.VariablesThere are some factors we must keep the same during the experiment to make it as fair as possible in order to get fair and accurate results, these factors are: Type of plant (we have used pondweed throughout the test). Volume of water. Lamp distance (the lamp was always 30cm away). All the experiments must be timed (5 minutes per experiment).Whilst there are factors we must change as part of the experiment to make it as fair as possible, they are: Surrounding temperature. Change the weed from the last experiment. You may think this factor is weird, but it is vital to change the pondweed in every experiment, this is just incase your pondweed has died because the last or present temperature is too hot or too cold. Therefore it is advised that you change the pondweed in every experiment.MethodThe method we used in order to undergo the experiment was basic and straight forward. We placed a standard pondweed in a testube filled with water, after diagonally cutting the end part of the weed in order to score sufficient and fair results.We placed this testube inside a beaker; this beaker was filled with water which varied in temperature according to what temperature we needed. We placed a lamp 30cm away from the plant, and after ensuring we had used the right temperature of water by using a thermometer, we began the timer and began to look closely for bubbles. After a period of five minutes we stopped counting the bubbles, the results are available in the results section of the coursework. Here is a diagram of the experiment.EvaluationI believe the experiment went well just as planned and worked out very well. I am confident about this because the results I got where the pretty much the same as the professional scientific results.I also believe that my results where accurate enough to prove that my prediction was correct. As I predicted that 30�C would be the most suitable temperature for photosynthesis to take place. We can see that this prediction is correct by looking at the graph.The method I used in order to carry out the experiment in my opinion was as fair as possible. I changed the pondweed every time in order to get a fair result, I also used the same volume of water each time to make sure that it does not effect the rate of bubbles released.If I had the opportunity to repeat the experiment I would try to measure the rate of photosynthesis at more temperatures, this would give me a clearer result and will indicate to me perfectly which temperature is most suitable for the most amount of bubbles given of from the Elodea.

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Photosynthesis Essay Example

Short essay answer photosynthesis

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Photosynthesis Essay

photosynthesis short essay

Photosynthesis: What Is The Importance Of Photosynthesis?

to detach it from or reattach it to the ATP molecule (Brandt). A main reason this is important is because as it was stated earlier, almost all organisms obtain and store their energy through the use of ATP. It is important to note that this energy comes from the energy stored in the bonds of the ATP molecule; therefore, breaking the bonds will release energy and the building of the bonds will require energy. Using this background knowledge, the question can be addressed more thoroughly. Most plants (a fruit in this case) make their own energy through the use of photosynthesis. The basic process of photosynthesis occurs as: light energy (sun) + 6 H2O + 6 CO2 6 O2 + C6H12O6 This is a simplified version of the equation and one must keep in mind that the reaction does not simply occur as written. There are many processes that must take place before the final product, glucose, is produced. Conceptually, photosynthesis is the reverse of cellular…

Photosynthesis: Difference Between Photosynthesis And Respiration

Photosynthesis and Respiration. The inputs (reactants), outputs (products) and any requirements of each process? Photosynthesis is when a plant takes in carbon dioxide and water and turns this into glucose and oxygen, but this process can't happen without light and chlorophyll. Respiration is the opposite of photosynthesis it is when an animal or plant cell takes in glucose and oxygen and turns it into carbon dioxide and water. The main difference with these two reactions is that respiration…

Photosynthesis Lab

Background: Photosynthesis is the process by which photoautotrophs convert photons of kinetic light energy into potential chemical energy (food) by synthesizing glucose from water and carbon dioxide and releasing oxygen as a waste product. Sunlight radiation travels in waves but acts like particles of energy called photons. During photosynthesis, these photons are harvested to produce chemical energy in the form of carbohydrates. Autotrophs are “self-feeder” organisms that make their own…

Photosynthesis Importance

Importance of photosynthesis The sun is the main and ultimate source of energy for the planet we live on. Many forms of solar radiation exist but the most important form of radiation in biology and for photosynthesis are infared rays, ultraviolet rays and light rays. Photosynthesis is the way in which some specialised bateria and green plants use their chlorophyll to trap light energy and then use this energy to convert carbon dioxide and water to glucose and oxygen. The green colour in plants…

Respiration And Photosynthesis

our most recent lab, before we could expand our knowledge about photosynthesis, we first had to understand its relationship with cellular respiration and how it can be further divided into photochemical and biochemical pathways. After achieving this knowledge, we furthered our understanding of photosynthetic reactions by and experimenting with the factors that affect photosynthesis, which are light intensity, pigments, and light wavelength. By experimenting with these factors, our group was…

Photosynthesis: Examining Photosynthesis And Cellular Respiration

Examining Photosynthesis and Cellular Respiration Introduction- In Lab 4, the purpose was to examine the process of photosynthesis and cellular respiration and understand the correlation between these two processes (BIO 202, Lab 4, 2016). Photosynthesis is a process used by plants and other organisms to convert solar energy into chemical energy; which is then used to fuel the organism. The equation for photosynthesis is 6CO2 + 6H20 + Solar energy ---> C6H12O6 + 6O2. This process has two…

Photosynthesis Of Spinach

immersion’ technique, the rate of photosynthesis under various conditions was quantified by observing the amount of spinach floating on top of a sodium bicarbonate solution. The sodium bicarbonate solution simultaneously supplied the spinach with carbon dioxide for use in photosynthesis, and caused it to sink. When the leaf underwent photosynthesis and produced oxygen gas, the leaf floated to the surface. It was hypothesized that an increase of either temperature or light intensity would lead to…

Elodea And Photosynthesis

Photosynthesis is the process by which plants turn carbon dioxide and water into sugars and oxygen. Photosynthesis occurs alongside cellular respiration, which is a process that takes place in plant cells and animal cells alike. Cellular respiration takes sugars and turns those sugars into energy for living organisms. While animal cells obtain sugar from an outside source, plants synthesize their own sugar in a series of anabolic reactions powered by sunlight. The photosynthetic pigments present…

Rate Of Photosynthesis

Plants photosynthesize in order to produce sugar and oxygen, which, in turn, gives the plant energy. Photosynthesis usually tends to occurs more when more chlorophyll are present in the leaves. When the leaves are exposed to light, the process of photosynthesis begins. The more light the plant is exposed to, the quicker the rate of photosynthesis will occur. Altering the amount of carbon dioxide given to the plant can also alter the rate at which photosynthesis occurs. Photosynthesis is a…

Photosynthesis In Biology

Photosynthesis Photosynthesis is the physico-chemical process by way of which plants, algae and photosynthetic bacteria consume light energy to drive the synthesis of organic compounds. In plants, algae and certain forms of bacteria, the photosynthetic process yields, the release of molecular oxygen and the elimination of carbon dioxide from the atmosphere that is used to produce carbohydrates (oxygenic photosynthesis). Further forms of bacteria use light energy to generate organic compounds…

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Photosynthesis.

                          Photosynthesis is a process in which green plants utilize the energy from the sun to manufacture carbohydrates from carbon dioxide and water in the presence of chlorophyll. In some plants such as algae and other certain bacterias, the photosynthesis process results in the release of oxygen and the removal of carbon dioxide. Some types of bacteria use light energy to create organic compounds. Photosynthesis provides the energy and reduced carbon required for the survival of oxygen consuming organisms. Photosynthesis occurs in cells or organelles that are typically only a few microns across. Photosynthesis has a profound impact on the earths atmosphere and climate. The physical and chemical reactions of photosynthesis must occur in a coordinate pattern. For photosynthesis to produce a simple sugar such as sucrose, it must require nearly 30 distinct proteins. The equation for photosynthesis is simple written as :.              6CO2 + 12H2O + Light Energy _____> C6H12O6 + 6O2 + 6H2O. (2).              Many of the proteins that are required for light energy and electron transfer reactions of photosynthesis are located in membranes. The photosynthetic process in plants and algae occurs in small organelles known as chloroplasts that are located inside the cell. Electron transport consists of a series of individual electron transfer steps from one electron carrier to another. I guess sunlight plays a much larger role in our lives than just to keep us warm and give off light. If it we didn't have photosynthesis could we live?.             

Essays Related to Photosynthesis

1. photosynthesis.

Introducing Photosynthesis: What is Photosynthesis? ... The Discovery of Photosynthesis The discovery of photosynthesis in cells began with the findings of Joseph Priestly. ... Photosynthesis, if translated, would mean "putting together with light-. ... Photosynthesis works in two main parts. ... Factors Influencing Photosynthesis There are several variations of the process of photosynthesis. ...

2. Photosynthesis

The answer to that is photosynthesis. What exactly is photosynthesis and why is it so important? ... Everything living organism is dependable on photosynthesis. ... Heats speeds up the rate of photosynthesis. 2. Light directly increases the rate of photosynthesis. ...

3. Photosynthesis

One such area is photosynthesis. ... Photosynthesis provides the basic energy source for almost all organisms. Photosynthesis is vital to life on earth. ... There are many parts involved in the process of photosynthesis. ... It is the main pigment of photosynthesis. ...

4. photosynthesis

Photosynthesis The second article was about photosynthesis and discusses organisms that use this process. Photosynthesis is the process in which plant cells take sunlight and carbon dioxide and synthesize glucose. ... The process of photosynthesis occurs in the chloroplasts of plant cells. ... In conclusion, the process of photosynthesis is a major fuel of all life in some way. ... Without photosynthesis life would not continue. ...

5. Photosynthesis

What would a person think of when they hear the word photosynthesis? ... According to Roberts (2000), photosynthesis causes plant growth and plants grow better with longer periods of light. ... From this information, we were able to form our hypothesis that Tube 1 has already undergone photosynthesis, Tube 2 and Tube 4 would undergo photosynthesis because it had all of the necessary ingredients, Tube 3 would not undergo photosynthesis because it had no chloroplast, Tube 5 would not undergo photosynthesis because it lacked light, and Tube 6 would not undergo photosynthesis because it contained...

6. Photosynthesis

Chloroplasts are structures in the cells of plants and algae where photosynthesis takes place.(Encarta 2000) Photosynthesis only occurs in autotrophs because they are unable to obtain food, therefore they have to make it themselves. ... Without photosynthesis there would not be oxygen for humans to breathe. Through photosynthesis, plants give off oxygen for us to breathe, and we supply plants with carbon dioxide need for the process of photosynthesis.... Since in winter there are no leaves on the trees, there is no photosynthesis that can occur, and they use their stored energy. ...

7. Photosynthesis

Cellular respiration ultimately makes carbon dioxide, which is accepted by plants and undergoes photosynthesis. In photosynthesis the reaction is like that of cellular respiration but backwards, 6 CO2 + 12 H20 + Light energy à C6H12O6 + 6 O2 + 6 H2O. ... Another process in photosynthesis that involves oxygen is photorespiration. Here oxygen is consumed to reduce the yield of photosynthesis, this process evolves carbon dioxide, but does not produce any ATP. ... But plants mainly undergo photosynthesis and aerobic organisms such as ourselves recycle this oxygen given off by them. ...

8. Photosynthesis

Photosynthesis is the process by which the energy of sunlight is absorbed and used to power the formation of organic compounds from carbon dioxide and water. Although primarily associated with green plants, photosynthesis also occurs in algae and a variety of bacteria. ... Photosynthesis takes place in many of the cells of the leaves. ... Photosynthesis takes place in these chloroplasts. ... Some key contributors to the discovery of photosynthesis are: Aristotle = believed plants obtained all the components required for growth from the soil Johannes Baptista = He concluded that it was wa...

9. Photosynthesis

Photosynthesis All green plants need to be able to make their own food.They do this by 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.This energy then combinEs with water molecules (from the soil) and carbon dioxide (from the air).Then as a result of this,a type of sugar is produced .This is called glucose.Also oxygen is made. ... I believe this will happen because when the the light source is nearer to the plant more of the plants surface...

Photosynthesis Essay Examples

photosynthesis short essay

photosynthesis short essay

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  1. Short Essay on Photosynthesis

    Related posts: Essay on the Light Raction of Photosynthesis Brief Notes on the concept of Light Absorption for Photosynthesis What are ... Here is your short essay on Photosynthesis Short Essay on the History of […]

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    Photosynthesis takes place in green plants, algae, .. By Robbie Latchford Isleworth and Syon School For Boys HOW DOES LIGHT INTENSITY AFFECT THE RATE OF PHOTOSYNTHESIS?

  4. Photosynthesis Essay Example Free Essay Example

    Essay Sample: Photosynthesis Essay IntroductionPhotosynthesis is the combination of sugar from light, carbon dioxide and water with oxygen being a waste product

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    Essays from BookRags provide great ideas for Photosynthesis essays and paper topics like Essay. View this student essay about Photosynthesis

  7. Photosynthesis Essay

    Photosynthesis is when a plant takes in carbon dioxide and water and turns this into glucose and oxygen, but this process can't happen without light and chlorophyll. Respiration is the opposite of photosynthesis

  8. FREE Photosynthesis Essay

    Photosynthesis is a process in which green plants utilize the energy from the sun to manufacture carbohydrates from carbon dioxide and water in the presence of chlorophyll

  9. Photosynthesis Essay Examples

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