Lesson 4 Laboratory: Photosynthesis Introduction: Elodea is a species of aquatic plant often called waterweed. Like other plants‚ Elodea absorbs carbon dioxide and releases oxygen during photosynthesis. In this lab‚ an Elodea specimen is submerged in water under a lamp with a filter that can change the color of the light. We will measure Elodea’s rate of photosynthesis by measuring the amount of oxygen it produces. We will investigate the effects of light color and light intensity on Elodea’s rate
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the products of carbon dioxide‚ water‚ and ATP + heat are released. Thus‚ cellular respiration is an exergonic process‚ since heat energy is released in order to do cellular work. The overall process can be encapsulated by the following equation: C6H12O6 + CO2 6CO2+ 6H2O+ 586 kilocalories of energy/mole of glucose oxidized. This reaction seems very straightforward‚ however there are numerous enzyme-mediated reactions that occur within it that are not so perceptible from the simplified equation.
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glucose in distilled water on treatment with some yeast begins to froth and gives the impression that the solution is boiling. This is due to brisk evolution of carbon dioxide during the reaction. The product obtained is ethyl alcohol. Thus‚ Yeast C6H12O6 2C2H5OH + 2CO2 Glucose
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Respiration in Beans We will evaluate respiration in beans by comparing carbon dioxide production between germinated and nongerminated beans. As shown in the balanced equation for cellular respiration‚ one of the byproducts is CO2 (carbon dioxide): C6H12O6 + 6 H2O + 6 O2 → energy + 6 CO2 + 12 H2O We will use a carbon dioxide indicator ( bromothymol blue) to show oxygen is being consumed and carbon dioxide is being released by the beans. Bromothymol blue is an indicator that turns yellow in acidic conditions
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stable pure organic compounds which have the theoretical value of COD(500ppm)‚ so it can used to gain an idea of how accurate the lab was. 2. Calculate the theoretical oxygen demands(g oxygen/g compound) for glucose and sodium acetate. (5 marks) C6H12O6 + 6O2 6CO2 + 6H2O The no. of mole of glucose = 1/(12x6 +12x 1+6x16)=5.56x10-3mole The ratio of glucose and oxygen is 1:6 The no. of mole of oxygen= 5.56x10-3 x 6 = 0.033mole Therefore‚ the theoretical oxygen demands for glucose
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Krebs Cycle Other names of Krebs Cycle; Citric Acid Cycle Tricarboxylic Acid Cycle Stages in which C02‚ H2O and Energy is released; 1: Glycolysis ("splitting of sugar"): This step happens in the cytoplasm. One Glucose (C6H12O6) is broken down to 2 molecules of pyruvic acid. Results in the production of 2 ATPs for every glucose 2: Transition Reaction: Pyruvic Acid is shuttled into the mitochondria‚ where it is converyed to a molecule called Acetyl CoA for further breakdown
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and water using light as an energy source. Most forms of photosynthesis release oxygen as a byproduct. the reaction of this process: Chlorophillian pigment 6H2O + 12CO2 + S.E -----------------------> C6H12O6+ 6O2 + 6H2O Easily‚ we can explain the reaction like 6 molecules of water plus‚ 12 molecules of Carbon Dioxide plus Sun energy‚ cross with chlorophillian pigment‚ in the product we have glucose‚ plus oxygen‚ plus water. We can put so briefly
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This report will overview the redox reaction - cellular respiration: C5H12O6 + 02 → 6CO2 + 6H2O + Energy and it’s use with the human body. Cellular respiration is a chemical process providing the body with usable and fast source of energy in the form of ATP. Along with ATP cellular respiration also produces CO2‚ H2O and Heat. This is an organic redox reaction. Redox reactions Redox reaction occur when there is a movement of electrons between atoms. Part of a redox reaction include: Oxidising Agent:
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photosynthesis‚ which involves the use of light energy to convert carbon dioxide and water into sugar‚ oxygen‚ and other organic compounds. Oxygen is released as a product. This process is often summarized by the following reaction: 6CO2 + 12H2O ------> C6H12O6 + 6H2O + 6O2 The energy of photosynthesis comes from absorbed photons found in light and involves a reducing agent‚ in this case water. The second lab is about the spectrophotometer where they learned that it’s an instrument that measures the amount
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Research Portfolio. Sarah Pearn‚ 23336383 Table of Contents Water: 3 1.2.3 Compare the state‚ percentage and distribution of water in the biosphere‚ lithosphere‚ hydrosphere and atmosphere. 3 1.2.4 Outline the significance of the different states of water on the Earth in terms of water as: 4 1. A constituent of cells and its role as both a solvent and a raw material in metabolism 4 2. A habitat in which temperature extremes are less than nearby terrestrial habitats 4 3. An agent
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