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Photosynthesis Lab

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Photosynthesis Lab Photosynthesis is the process by which plants covert sunlight, water, energy, and carbon dioxide into glucose. A byproduct of photosynthesis is the oxygen as a result of water molecules being split in the electron transport chain. This can be shown in the equation: 6H2O + 6Co2 + Light  C6H12O6 +6O2. Essentially, plants are converting solar energy into chemical energy. Examples of organisms that perform photosynthesis are plants, bacteria, algae, and proteus. Plants obtain energy from the sun. This energy come in waves and have photons (the smallest unit of light) travelling along them. You can see photons in a wide spectrum of wavelengths on the electromagnetic spectrum. Photosynthetic organisms only use visible light. …show more content…

The overall goal of cellular respiration is to breakdown sugar and make ATP. Cellular respiration has both anaerobic and aerobic processes. Anaerobic processes are process that don’t require oxygen while aerobic processes do. The breakdown of glucose (sugar) happens during glycolysis. Glycolysis is an anaerobic (no oxygen) process that takes place in the cytoplasm. When the glucose gets broken down, it forms two molecules of pyruvic acid and a 2:1 ratio of ATP to glucose. These pyruvic acids get sent into the mitochondria to be broken down by Acetyl CoA. The next step of cellular respiration is the Krebs or Citric Acid Cycle in the matrix of the mitochondria. In this cycle aerobic (uses oxygen) process, hydrogens get taken away from the Acetyl CoA molecule in order for electrons to synthesize ATP. When the hydrogens get used up, waste remains: carbon dioxide and water. The Krebs cycle makes a total of 4 ATPs and a lot of NADH which carry hydrogen electrons to the electron transport chain. Along with FADH2, NADH will form water when electrons travel down their hydrogen gradient to oxygen. This gradient, which is formed on the inner membrane, also allows electrons to return to the matrix via the ATP synthase. This will make more ATP. In the electron transport chain a total of 32 ATPs per glucose is made. Another anaerobic process (process without oxygen) that occurs in cellular respiration is fermentation. When there isn’t any oxygen, fermentation acts as a back-up generator by supplying cells with enough energy to at least perform partial glycolysis, until they’re able to restock on oxygen. Types of fermentation include lactic acid (forms in the body when muscle cells run out of oxygen when exercising) and ethyl alcohol (used in beer and yeast). The importance of this lab was to measure the rate of cellular respiration by measuring the consumption of oxygen during

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In this experiment the rate of cellular respiration was measured by the amount of CO2 in ppm per gram of substance produced by a given treatment group or the control over the course of ten minutes. CO2 levels were measured using a CO2 sensor. The sensor was given time to warm up then placed in a glass chamber with a sample from one of the treatment groups or a sample of control. CO2 levels in ppm were collected every four seconds for ten minutes by the sensor. The data was divided by the weight of the sample used to generate it, to give the respiration rate per gram of sample.

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Transitioning between photosynthesis and respiration : CO2 cuts into carbon and oxygen, some of the oxygen is then released and the carbon mixes with H20. If it was mad and balanced, the effect of carbon and water will also affect glucose. This is called photosynthesis. Plants take the water and CO2 in order to make food (glucose) which sets the oxygen free.

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Photosynthesis/Scientific Method Worksheet 1. State and explain your pre-experience hypothesis: We were supposed to place (Elodea) in two tubes, which one should closer to a light source and the other with no light on it. The experience consisted in observe and count the amount of bubbles coming out from the plant in both tubes.

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Many organisms use energy to perform their cellular functions. That energy comes from the energy that is stored in food then converted to adenosine triphosphate or ATP. ATP can be obtained with or without oxygen, aerobic respiration and anaerobic respiration. Aerobic respiration produces carbon dioxide (CO2) as a by-product while anaerobic respiration produces Ethanol (C2H6O) or Lactic acid (C3H6O3). In aerobic respiration the “CO2 produced during cellular respiration can combine with water to produce carbonic acid.”

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All organisms use food molecules, like glucose to produce ATP. The production of ATP occurs during cellular respiration. ATP provides the cells with energy that is necessary to produce oxygen. The seeds/plants are autotrophic organisms, which produce their food from the energy that the light provides them. To release the stored energy within the food molecules, the germinated seeds carry out respiration and the release of carbon dioxide.

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Elodea is a type of rooted plant with multiple branches (Elodea). Elodea is known as a weed located in parts of Australia, Africa, Asia and Europe, but is known to be popular in Washington’s lakes, ponds and rivers (Native Freshwater Plants, 1994). Photosynthesis involves light energy converting to sugar while respiration burns the sugars produced in photosynthesis in order to help the plant grow and reproduce (Whiting, 2014). The equation for photosynthesis is 6CO2+ 6H2O⇢C6H12O6+ 6O2. In other words, carbon dioxide, water and light are the reactants, and the products of photosynthesis are glucose and oxygen.

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This lab’s end result was to correctly identify each unknown solution using prior knowledge of chemical properties and the results of the first experiment conducted. Unknown solution D was the only colored solution, being blue while the others were clear. This made it easy to then match D up to Copper Sulfate because of its color. As unknown A and B were added together, lots of gaseous bubbles formed and revealed the fact that that reaction was the reaction between Hydrochloric Acid and Sodium Carbonate because it was the only reaction that produced a gas release. Unknown A and C produced the only yellow, brown precipitate just as the reaction between Sodium Carbonate and Silver Nitrate had previously.

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Two energy-rich ATP start the process. At the end of the process, there are two pyruvate molecules, four ATP, and two NADH. Cells that use oxygen uses pyruvate in a second process that creates more ATP. The second step in Cellular respiration is Link Reaction (pyruvate oxidation).

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Anaerobic glycolysis is a system that doesn’t require oxygen but uses glucose to form ATP. This pathway occurs within the sarcoplasm through two separated phases: investment and generation. The investment phase give one energy of ATP to glucose to help break it down. The breakdown or net gain of glucose into components of two ATP and two pyruvate is generated in this generation phase. This second system of anaerobic glycolysis is very important for Rupp as his muscles will produce ATP somewhat rapidly during his exercise of running.

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The process of photosynthesis is vital for the survival of most life on Earth. Without photosynthesis plant life would be unable to create its own food and sustain themselves causing them to die. Earth would lack the oxygen and energy that plant life provides. Producers are the main source of energy for living organisms because they can directly absorb light energy and turn it into chemical energy. Animals then eat the plants which give them a portion of that energy.

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The stomata are the most critical piece to this process, as this is where CO2 enters and can be stored, and where water and O2 exit. Cellular respiration also known as oxidative metabolism is important to convert biochemical energy from nutrients in the cells of living organisms to useful energy known as adenosine triphosphate (ATP). Without cellular respiration living organisms would not be able to sustain life. This process is done by cells exchanging gases within its surroundings to create adenosine triphosphate commonly known as ADT, which is used by the cells as a source of energy. This process is done through numerous reactions; an example is metabolic pathway.

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Both photosynthesis and aerobic respiration are necessary processes in plants and provide energy. Aerobic respiration uses glucose (sugar) and oxygen to form carbon dioxide and energy while photosynthesis uses carbon dioxide and water to form glucose and oxygen. Photosynthesis may only occur during the day time while aerobic respiration occurs all the time. Since an increase in carbon dioxide levels indicates an increase in aerobic respiration and a decrease in photosynthesis, we can measure the net exchange of carbon dioxide levels and determine whether more photosynthesis or aerobic respiration at a particular time has occurred.

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Then, tests are performed to determine if the products of aerobic and anaerobic respiration are present in the flasks. The citric acid cycle consists of a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon dioxide and chemical energy in the form of ATP (Biology). The tests detect the presence of carbon dioxide and ethanol. Carbon dioxide should be present irrespective of the type of respiration taking place, but ethanol is present only if fermentation has occurred. Another factor that can indicate whether fermentation occurred or cellular respiration occurred is the amount of glucose utilized during incubation.

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The 2 molecules of pyruvate are passed down to the oxidation of pyruvate, and NADH will be used for the electron transport chain. The rest of the products, 4 ATP, ADP, and P, are used where needed in the cell. After glycolysis occurs, oxidation of pyruvate takes places in the mitochondrial matrix. During this stage,

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This occurs in both eukaryotic cells, as well as, prokaryotic cells. In the prokaryotic cells, it takes place in the cytoplasm; in the eukaryotic cells, it takes place in the mitochondria. Oxygen is vital for ATP production

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