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Light Dependent Reaction Lab Report

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The light dependent reaction is vital for photosynthesis to take place. There are six stages to this reaction. Stage one breaks down bond in water to form oxygen, while this is taking place electrons are freed along with hydrogen. This stage happens to take place in the thylakoid space. Stage two involves electrons moving to photosystem II. At this point energy from light is absorbed while in photosystem II. Therefore electrons receive more energy while being in the thylakoid membrane. Stage three takes electrons through the electron transport chain. In this stage energy is provided to transport hydrogen ions from out of the stroma into the thylakoid space. This stage also takes place in the thylakoid membrane. Stage four of the light dependent reactions involves photosystem I. While in photosystem I, light is absorbed for the movement of electrons in the thylakoid membrane. Stage five lets the electrons passing through get acquainted by NADP+. NADP+ then links with hydrogen to form NADPH in the …show more content…

Step one involves two-carbon acetyl group CoA is added to the four-carbon oxaloacetate to create six-carbon citrate. Step two the citrate loses a particle of water and gains another one. The citric acid is converted to the enzyme aconitase. Step three the isocitrate loses another molecule of carbon dioxide and can be oxidized by forming the five-carbon alpha ketoglutarate. Step four the alpha ketoglutarate is changed to the four-carbon succinyl CoA. A particle of carbon dioxide is deleted and NAD+ is changed to NADH + H+ during the process. Step five CoA is removed from the succinyl particle and is changed out with a phosphate group. Step six is the oxidant of succinate while fumarate is created. FAD is reduced and creates FADH2. Step seven the water particle is added and the bonds within carbons in fumarate are changed-creating malate. The final step malate is oxidized creating

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Photosynthesis takes place in the chloroplasts; green organelles inside plant cells. The thylakoid inside Chloroplasts absorb the sunlight energy needed for photosynthesis. The pigment in the thylakoid absorbs light; however, plants reflect green light. This gives plants their color. If different colors of light are shown on spinach leaves and CO2 consumption is measured, then the spinach leaves given green light will consume the least amount of CO2 due to reduced photosynthesis activity.

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Oxygenic phototrophs have chlorophyll pigments while anoxygenic phototrophs have bacteriochlorophyll pigments. Bacteriochlorophyll pigments absorb light at longer wavelengths compared to chlorophyll pigments. Bacteriochlorophyll and chlorophyll also have varying side groups on their structures. How do the reaction centers and photosystems differ between cyanobacteria and Chlorobi? Cyanobacteria have photosystems 1& 2 whereas Chlorobi only have photosystem 1.

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This lab only included double-replacement reaction which allowed for only one of 2 types of products. Products that chemically reacted (solid) or products that didn’t (aqueous). The insoluble products of these double replacement reaction occurred when the cations or anions of the reactant bonded with the cation or anion of the other reaction. When this happens the reactants get paired together with the reactant it bonded with and causes a replacement. This is shown evident in the lab in Station

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Photosynthesis occurs in the chloroplast of plant cells. Respiration differs from photosynthesis because the reactants of respiration

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The results of my experiment agree with my text. My text states that if carbon dioxide, oxygen and a light source is present, then the plant will carry out photosynthesis will begin. The plant will be unable to begin or carry out photosynthesis if the right components are not available (Farabee 2007). My hypothesis was partially correct.

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photosynthesis and cellular respiration are extremely important in the cycle of energy to sustain life simply because nutrients would not metabolize in a productive manner. Both have numerous stages in which the process of energy occurs, and relationships with organelles located in the eukaryotic cell. Photosynthesis is a process by which green plant and other organism manufacture their food using sunlight to synthesize foods from carbon dioxide and water while cellular respiration is the oxidation of organic compounds that occurs within cells, producing energy for cellular processes. Photosynthesis occurs within organelles called chloroplasts. These organelles can absorb light, and are located inside of leaves.

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Next, the citrate is moved around to create isocitrate which donates a hydrogen ion and 2 of the electrons move to the NAD+ creating now the product of NADH. Alpha-ketoglutarate is created by removing the carbon dioxide from the

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At the Lawrence Berkeley National Laboratory, major accomplishments have been achieved by scientists involving an artificial photosynthesis system. Researchers involved in this experiment include: Peidong Yang, Christopher Chang, and Michelle Chang. This system the scientists have developed is composed of four parts. One element of this new structure integrates capturing solar energy. Another component engages developing lowering equivalents.

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Just like respiration, photosynthesis has two phases but they do different things. The first phase is the Light Phase where chlorophyll absorbs red, blue, violet light (energy) to produce ATP for the dark phase and to split H20 into hydrogen and oxygen. The light phase can only occur when light is present. The second phase is the Dark Phase also known as the Calvin Cycle. In this phase it uses the ATP produced from the light phase to join atmospheric CO2 (Carbon Dioxide) to the H2 (Hydrogen) to make C6H12O6

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“Carbon dioxide is captured in a cycle of reactions known as the Calvin cycle, it diffuses into the stroma of chloroplasts and combines with a five-carbon sugar and RuBP. This catalyzed reaction produces a 6-carbon which decays almost immediately to form two molecules of the 3-carbon compound. Using chlorophyll in the process of photosynthesis, they convert the sun's energy into ordered sugar molecules such as glucose. This way, carbon dioxide from the air and water from the soil in a bad state are combined to form a organized sugar molecule. In the last stage of the Calvin Cycle, RuBP is regenerated, which enables the system to prepare for more carbon dioxide to be fixed.

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Photosynthesis is the process of converting light energy to chemical energy that can be used to fuel the organism’s activities. Photosynthesis is when the organism takes in carbon dioxide and releases oxygen. When the sun goes down, the algae start to respire. Respiration is when the organism takes in oxygen and then releases carbon dioxide to create energy.

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Photosynthesis can occur anywhere there is green on the plant

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Introduction Photosynthesis is the process of converting energy from sunlight to chemical energy known as ATP which is necessary for all living organisms. The photosynthetic process uses raw materials such as water and carbon dioxide and releases oxygen and sugar as a byproduct (Mader, S. 2010). The chemical equation is:

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The first reaction is catalyzed by citrate synthase enzyme. Once the oxaloacetate and acetyl CoA are joined, the water molecule attack at acetyl group of acetyl coenzyme A and release the coenzyme A from complex of oxaloacetate and acetyl CoA to formed citrate. Citrate synthase:(enzyme) The enzyme citrate synthase is present in nearly all living cells and act as a pace-making enzyme in the citric acid cycle’s first step. Citrate synthase is present in eukaryotes but is is made up of nuclear DNA instead of mitochondrial.

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High energy phosphate transferred ADP, forming ATP. A 3 carbon molecule, 3-Phosphoglycerate is formed. As this process occurs twice, a total of two ATP are created. Therefore the energy put into the first three steps is now paid back. Step eight sees the 3-Phosphoglycerate transformed by the enzyme Phoso-glycerate mutase into

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