Cellular Respiration OVERALL EQUATION: C6H12O6(aq) + 6O2(g) -> 6CO2(g) + 6H2O(l) 3 OVERALL GOALS: 1. Break bonds between the 6-carbon molecules of glucose – results in 6 CO2 molecules 2. Move hydrogen atom electrons from glucose to O2‚ forms 6 H2O molecules 3. Trap as much free energy released as possible in the form of ATP Stage 1: Glycolysis Cytoplasm‚ 10 reactions‚ anaerobic Stage 2: Pyruvate Oxidation Mitochondrial matrix‚ 1 step process Stage 3: The Krebs Cycle Mitochondrial
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and for waste is carbon dioxide (CO2) and water (H2O). CO2 can combine with water to form carbonic acid during cellular respiration. Phenolphthalein can be used to help detect any changes in pH because of production of CO2 during cellular respiration. Phenolphthalein usually appears clear or colorless in acidic solutions‚ and red in basic solutions. Procedures: In the first lab‚ seven test tubes were attained and six of them were filled with the solutions that were listed (Na Pyruvate‚ MgSO4
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link above and answer the following questions in your lab notebook. Please write the section headings along with making sure you use full sentences in your responses. Introduction and Key Concepts What will you observe in this investigation Write the equation for cellular respiration. What are some processes in plants that require respiration Design of the Experiment What are the three ways in which you can measure the rate of cellular respiration What method will be used in this demonstration Sketch
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Krebs cycle? 1 per cycle 15. What two energy carriers are yielded during the Krebs cycle? NADH and FADH2 16. How many of each type of energy carrier is yielded from one pyruvate molecule? 3 NADH and 1 FADH2 17. In which stage of aerobic cellular respiration will the energy carriers be used? Electron transport chain and chemiosmosis 18. What waste product is expelled during the Krebs cycle and how many molecules of it are produced per molecule of acetyl CoA? 2 CO2 19. Summarize all of the
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Analysis: In this lab we measured the rate of respiration of germinating mung beans and germinating peas at room temperature and 10 degrees Celsius. The rates of respiration at room temperature were higher than the rates of respiration in cold water. The reaction rate of the germinating peas at room temperature was .0125 ml/min and the reaction rate of the peas at 10 degrees Celsius was .0095 ml/min. The same is true for the germinating mung beans. At room temperature the rate of reaction was .0105
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Lab 7 – Cellular Respiration Objectives: • To be able to define cellular respiration and fermentation. • To give the overall balanced equations for aerobic respiration and alcoholic fermentation. • To distinguish between inputs‚ products‚ and efficiency of aerobic respiration and those of fermentation. • Understand the relationship between respiration and photosynthesis. Note: You should perform experiments as described in this handout‚ which are adapted from Starr and
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Effect of Temperature on Cricket Respiration Crickets are ectotherms that rely on their environment as a source of heat for their metabolism. Warmer temperatures allow crickets to respire at a greater rate. Respiration rate (ppm/sec/g) 1.2 1 0.8 0.6 0.4 0.2 0 0 5 10 15 20 25 30 35 40 45 Temperature (°C) Figure 1: Respiration rate (ppm/sec/g) of crickets at 6 different temperatures (°C). Values are means of 6 respiration rate measurements. Error bars represent
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Cellular Respiration and Fermentation: Experimenting With CO2 and Redox Reactions Julius Engel; Section 8 Abstract In this experiment‚ the subjects of study were fermentation‚ mitochondrial respiration‚ and redox reactions. In the first experiment‚ yeast was grown in various carbohydrate solutions at various temperatures. In the second experiment‚ succinate was added to various samples of a mitchondrial suspension‚ DPIP‚ and a buffer. Then after two blanks were used‚ the samples
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up‚ storage‚ and lastly cellular respiration. All of these ideas are the reason that myself and others have energy to do anything and everything. Photosynthesis is one way plants(plants are the main source of energy for all things)get energy to do things. The reactants of this are water‚ carbon dioxide‚ and although light energy is not a reactant‚ it is necessary once the energy from the seed is gone. Carbon Dioxide needs to be present for photosynthesis to happen. In lab 7.2‚ we put an elodea in
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Energy In A Cell – Respiration & Photosynthesis Cellular respiration and photosynthesis are complementary reactions. In this lab‚ you will review both processes and put the steps of each in order of occurrence. You will gain from this exercise an overall understand of how these processes work hand-in-hand in cellular organisms. You will go to the following website: http://glencoe.mcgraw-hill.com/sites/dl/free/0078757134/383932/BL_25.html After reading the guide‚ you will work to move
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