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Photosynthesis Essay Examples

Essay on Photosynthesis

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To investigate the effect of carbon dioxide concentration on the rate of photosynthesis

The leaf discs are extracted from the same area as much as possible to minimise inaccuracies caused by differences in chlorophyll density in different areas of the leaf. They are prepared for the experiment by subjecting them to a low-pressure environment so that air will come out of the leaf discs, causing them to sink. In this way, the time taken for them to float back up is measured, because a ...

Paper Chromatography Lab

7. Pigments separate rather than travel up the paper at the same rate due to their solubility. Pigments that are the most soluble in methanol will travel to the highest levels, almost as high as methanol itself, but pigments that are least soluble in methanol will stay lower down on the filter paper. The pigments will only travel far enough so that they are completely dissolved from the methanol ...

Differences and Similarities between Respiration and Photosynthesis

Organelle StructuresThe double-membraned mitochondrion can be loosely described as a large wrinkled bag packed inside of a smaller, unwrinkled bag. The two membranes create distinct compartments within the organelle, and are themselves very different in structure and in function.Two membranes contain and protect the inner parts of the chloroplast. The stroma is an area inside of the chloroplast wh...

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Food Web Case Study

•I use myself for my last example. I am a human being, located within my own food web. I eat food that come animals. I need the oxygen that omits from trees and plants to survive. I go to work every day to provide for my family so that I can feed them. When I am applying for a job I am in competition with others that are looking to take care of their families, therefore we are in competition wit...

Rate of Photosynthesis in Spinach leafs

The significance of the research is that in photosynthesis carbon dioxide is taken in producing oxygen, which is extremely important for all organisms in order to live and function properly. (McGinley, 2010) In photosynthesis glucose is also formed and is vitally needed as an energy source in the photosynthetic organism itself and is therefor the organisms nutrition. (McGinley, 2010...

BioPharma Case Study

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C4 and CAM Plants

Cactuses, pineapples, and certain other plants have a different adaptation to hot, dry climates. Such plants fix carbon through a pathway called the CAM pathway. CAM is an abbreviation for crassulacean acid metabolism, because this water-conserving pathway was first discovered in plants of the family Crassulaceae, such as the jade plant. Plants that use the CAM pathway open their stomata at night ...

Eggplant to floor wax introduction

Our research aims to put these problems away through the use of eggplant leaves, by the use of eggplant leaves we can eliminate the problems of toxic materials exposing human and plants and making the floor wax safe to dispose at the environment because it can degrade over time plus making it 2 times more cheaper and the most important part is we can retain results, texture and luster of a commerc...

Save Trees

Trees or plants would also make your house look beautiful and would increase the number of compliments regarding the beautiful garden of yours! ;) Trees also help us by blocking the noise on the streets created by the traffic. Trees also give us food, which is the most important need in our life by this sentence I mean that indirectly trees or plants help us LIVE! We cannot live without food. Tree...

Photosynthesis Lab Report Purpose

Green and yellow light is reflected and not very helpful in plant growth The most important wavelengths of the blue spectrum are from 430nm to 450nm (cool light) The most important wavelengths in the re spectrum are from 640nm to 680nm (warm light) Green and yellow light are mostly reflected off the plant and that is why it appears green in color Photosynthesis occurs more quickly with the correct...

Separation of leaves pigment

The molecules of carotene are the smallest and they are unsaturated hydrocarbon, thus the solubility of the molecule in organic solvent is the highest, the molecules move the fastest. Phaeophytin has two hydroxyl, it increases the polarity in organic solvent, it is less soluble compare with carotene. Phaeophytin molecule is bigger than carotene molecule and follow by xanthophyll molecule. The size...

Mitochondria and Chloroplast

The carbons from the carbon dioxide that we exhale, and the hydrogen from water molecules, are the sources for these atoms to build carbohydrates. The sun breaks down water molecules to help make carbohydrates and oxygen, this process is called photolysis. The next sequence of chemical reactions is commonly referred to as the dark reaction. This reaction unlike the light reaction does not need lig...

The effect of light intensity on the rate of photosynthesis

I did not have any anomalous results. I don't feel that I could improve the way I carried out the experiment. But I do feel I could have changed a few things about the experiment. For example I could have examined other variables such as lack of air or no soil or changes in water amounts given to the process of photosynthesis etc. Also instead of measuring the length of the oxygen bubble I could h...

Photosynthesis and Cellular Respiration

In the end, we see that both phtosynthesis and cellular repiration are necessary for living organisms. Both work as biochemical pathways, always recycling and continuing the process. There are some differences and some similiraties betwenn themm, too. Plant cells contain chloroplasts. These little 'factories' within the plant cells use the compound chlorophyll to take the energy from sunlight, and...

Lab Report for Chromatography

Chromatography is a technique to differentiate several pigments in plant. The photosynthetic pigments in spinach are chlorophyll b and Carotenoid. However, theoretically, it should have 4 pigments, chlorophyll a, chlorophyll b, xanthophyll, and carotene. During the chromatography process, a solvent mixture that causes the individual pigments to be separated during the run is selected; the loaded c...

The Carbon Cycle

There are two ways in which we affect the carbon cycle. First we add new atmospheric carbon dioxide into the mix. Power generation and other fossil fuel emissions release about 6 billion tons of carbon per year, would wide, to the atmosphere. Compared to the amount added naturally every year, approximately 100 billion tons3, our contribution is small. However, the new carbon is remaining and accum...

Cellular Respiration and Photosynthesis

Other functions within the cell utilize the glucose molecule; this cell section is called mitochondria. Every mitochondrion obtains glucose, breaks it down into atoms, and by combining it with atoms from more oxygen, creates carbon dioxide, water and energy; energy in a form that can be used by all cells. The chemical equation describing this outcome, cellular respiration, is written this way: 6O2...

Plant Pigment Chromatography

Conclusion Plants have a large number of pigments to carry out photosynthesis to ensure that the absorption of photosynthetically active radiation (PAR) is maximized. Individually, the different pigments will absorb only a certain range of wavelengths in the PAR. For example, chlorophyll will not absorb the blue green region while carotenoids will try to absorb energy in the green region of the li...

The Global Carbon Cycle

When the carbon is eaten by humans in the form of carbohydrates they need to be broken down In order to be digested in the body. Food is physically broken down into smaller pieces by the teeth which gives a larger surface area for chemical digestion. Chemical digestion breaks large insoluble molecules into smaller soluble ones through hydrolysis using enzymes. Carbohydrases are the type of enzymes...

Chlorophyll and Polar Groups

Duckweed is a tiny floating aquatic plant that can reproduce so rapidly that it can completely cover the surface of small fish hatchery ponds. One proposal to limit the growth of this invasive plant is to use colored panels to shield the ponds, inhibit photosynthesis, and kill this pest. What color filters would you order for the panels in this project? What wavelengths of light will be absorbed b...

Photosynthesis (Chemical change)

We should tell the citizens about the actual side effects of cutting down trees. To find the alternative means other than the use of tree for usual activities like cooking, building and for furniture; Instead we are to use plastic and iron material for furniture and building purposes and also the use of gases for cooking. We can also create strict laws against cutting of trees and improper use of...

Global Warming and Photosynthesis

Global warming is the increase in the average temperature of the Earth's surface and is caused by greenhouse gases in the Earth's atmosphere. The more greenhouse gases there are, the warmer the Earth gets. The warmer the Earth gets, the bigger the increase in the average temperature of the Earth's surface. So, more global warming means more greenhouse gases which means more carbon dioxide in the ...

Photosynthesis Lab Report

24. Once the data is finished collecting, add up the data for the 3 trials for the first test, divide the sum by 3 to get your average. Do this for a the rest of your tests till you get 5 averages for each of the 5 tests 25. Make a table on ‘Exle’, write test 1, 2 and so on in each cel and the amount of carbonate, then write the averages for each of the tests under 26. Highlight all of this ...

The Success of Photosynthesis in Geranium Leaves

We don’t know why the black paper enabled photosynthesis to happen and can only guess that the paper wasn’t secure enough and let some light through. With the 5 rating disregarded in the averaging of our results, the experimental area is left with an average rating of 0.5 (Fig. 1). Being close to a rating of 0, this area produced practically no starch and it’s safe to say that black is not a...

The Five Domains of Life: Biology

New data suggests that two kinds of prokaryotes diverged early in the history of life, and thus there are actually three major categories of organisms. A new classification system assigns more significance to the ancient split by creating a level of classification larger than a kingdom a new category called a domain. The two domains of prokaryotes are Bacteria and Archaea. The domain Eukarya encom...

The Oxygen- Carbon Cycle

After the death of any living organism, that is, unicellular or multicellular organism, it is decomposed. This decomposition means insects, fungi and bacteria, together called decomposers, help in breaking down the cellular components of the dead organism into its basic elements. These elements include water, calcium, nitrogen, carbon and oxygen. Thus, decomposers help in release of oxygen and car...

Food Chains, Food Web, Ecological Pyramids

Energy is lost between each link in a food chain. Much of the potential energy at each level never reaches the next level. Where does the energy go as it moves through a food chain? Some of the energy that enters a food chain is used as each organism carries out its life functions (i.e. foraging, metabolic processes, reproduction, predator/prey behavior, etc.). Producers manufacture their own food...

Calvin Cycle a Part of Photosynthesis

The bonds connecting this carbon atom to hydrogen and carbon are much higher in energy than the original C-O bonds of carbon dioxide. This carbon is left behind as the cycle continues. G3P has three carbons, so it will require three turns of the cycle to provide the necessary carbons to make one molecule of G3P. Since glucose has six carbons, it will take two G3Ps or six turns of the cycle to make...

The spinach leaf

14) Do the same for trial 2 and 3 but replace the cups 10 cm from the light stand 15) As soon as the leafs are exposed to light start timing 16) Record the time of number of disks floating everyminute 17) Keep doing this until all disks have floated or you’ve reached 30 min 18) Do the same for the dark but what changes is that you put it at first 10 cm above light for 14 min and count number of ...

Photosynthesis is a Very Beneficial Process

Another way photosynthesis is beneficial is in regards to its use with trees producing oxygen. The entire process of photosynthesis ends up producing oxygen and sugar (glucose). In case you didn't know, any living animal or plant species on earth needs oxygen to survive . It's the most important requirement along with food and energy . There are many benefits of photosynthesis and I believe those ...

Function of Plant Organs

Examine the Leaves (forms) page to learn the extensive terminology used to describe this variation. Consider that there are functional reasons for the modifications from a "basic" type. The Stem The stem arises during development of the embryo as part of the hypocotyl-root axis, at the upper end of which are one or more cotyledons and the shoot primordium. The Root The root is the (typically) unde...

Contemporary Issues of Management Accounting

Reduce lead times (production and delivery): production lead times can be reduced by moving work stations closer together, applying group technology and cellular manufacturing concepts, reducing queue length (reducing the number of jobs waiting to be processed at a given machine), and improving the coordination and cooperation between successive processes; delivery lead times can be reduced throug...

Cellular Respiration and Photosynthesis

In the cellular respiration the reactants are 6 molecules of Oxygen and glucose, and the products are 6 molecules of water + 6 molecules of carbon dioxide. As we can see the cellular respiration is the opposite equation of the photosynthesis. All life depends on these reactions because we need oxygen, and this oxygen comes from the plants that releases it from photosynthesis. And we all need energ...

Air quality

One must realize the fact that plants constitute a major recycling pathway for the purification of atmospheric air. Photosynthesis uses sunlight and such inorganic molecules like CO2 to produce organic compounds in the from of glucose. This is consumed by animals to produce CO2. O2 is used in oxidation of food in animals with carbon dioxide as byproduct. This pathway is important in determining th...

The Essentials That Plants Need To Survive Environmental Sciences

Water also helps maintain the plants temperature through the evaporation of the water in the plant. When the water on the surface area evaporates in takes in more water into its roots. It all works as a circulation system just like our breathing and plants breathing circulate. At the beginning of the water cycle the water goes through another circulation process. This process also involves evapora...

Bacterial Culture: Thuricin 17

Protein profiling and IdentificationThe total protein extracts will be digested with trypsin and subjected to LC-MS/MS using LTQ-Velos Orbitrap (Thermo Fisher, MA, USA). Tandem mass spectra will be extracted, charge state deconvoluted and deisotoped, and all MS/MS samples will be analyzed using Mascot software (Matrix Science, London, UK; version 2.3.02). Mascot software will be used to search the...

Cultivars of four varied species of Ornithogalum lisianthus

The process of transplanting was done in the evening to reduce water loss due to evaporation. Carnation plants were sown in polythene bags (6 X 9 inches). The bags were irrigated, when necessary and remove weeds as emerge. There were 12 treatments designed 50% shading of green and 50% of blue nets and control conditions. Each net contained 60 carnation plants sown in four different combinations of...

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