combines with potassium hydroxide. This creates a change in volume of the gas in the respirometer. Because the amount of oxygen consumed and carbon dioxide produced have the same molar ratio (6:6)‚ the rate of change in volume of gas is directly related to oxygen consumption‚ and the rate of cellular respiration. The change in the volume of the gas that takes place is analyzed through the use of submerged respirometer and the use of the universal gas law. Through the equation PV=nRT‚ we know that if
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Lab 5Cellular Respiration Introduction: Cellular respiration is an ATP-producing catabolic process in which the ultimate electron acceptor is an inorganic molecule‚ such as oxygen. It is the release of energy from organic compounds by metabolic chemical oxidation in the mitochondria within each cell. Carbohydrates‚ proteins‚ and fats can all be metabolized as fuel‚ but cellular respiration is most often described as the oxidation of glucose‚ as follows: C6H12O6 + 6O2 → 6CO2 + 6H2O + 686 kilocalories
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lab‚ we will be measuring the amount of oxygen consumed by using a respirometer‚ where the amount of oxygen consumed will be measured by the amount of water taken into the respirometer. Hypothesis: 1. If I place the 3-day germinating peas in the respirometer‚ then there will be a high amount of oxygen consumption and a faster rate of oxygen consumption in both temperatures. 2. If I place the dry peas and beads in the respirometer‚ then there will a low amount of oxygen consumption and low rate
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AP Biology I Investigation 6 AP Bio: Lab 6 Cellular Respiration Introduction Some knowledge that is needed before performing this lab are as follows: First of all‚ cellular respiration is the metabolic processes whereby certain organisms obtain energy from organic molecules. This process includes glycolysis‚ the Krebs cycle‚ and the Electron Transport Chain. Glycolysis is a process that takes place in te cytosol and it oxidizes glucose into two pyruvate. Glycolysis also makes ATP and NADH. The
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| AP Biology Lab #5: Cell Respiration | | | | | | Brian Suarez Completed with Yeonah Suk‚ Michelle Lee‚ and Agron 12/14/12 SBS21X (Period 1 & 2) Ms. Brady Brian Suarez Completed with Yeonah Suk‚ Michelle Lee‚ and Agron 12/14/12 SBS21X (Period 1 & 2) Ms. Brady Introduction To be able to carry on metabolic processes in the cell‚ cells need energy. The cells can obtain their energy in different ways but the most efficient way of harvesting stored food in the cell is through
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The Effect of Boiling on the Rate of Aerobic Respiration of Germinating Peas Abstract Aerobic respiration is an enzyme mediated process during which glucose is used to make ATP to fuel the cells energy needs. Germination is one of such processes that make use of aerobic respiration and because certain factors can affect aerobic respiration‚ it would also affect germination. In this experiment‚ we examined the effects of boiling on the rate of aerobic respiration of germinating peas. Unboiled
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AP Biology 11 February 2014 Observing and Analyzing the Rate of Cellular Respiration in Germinating and Non-germinating Black-eyed Peas I. Hypothesis If the cellular respiration rate of germinating black-eyed peas and non-germinating black-eyed peas is compared then the germinating black-eyed peas will have the higher respiration rate. II. Background Organisms need some sort of energy to facilitate their growth and development. Usually‚ this energy is in the form of adenosine triphosphate
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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 a respirometer and label its important features. What does it measure As the organism inside the respirometer consumes oxygen‚ what happens to the water What happens to the CO2 that the organism produces Experimental Setup (View the graphic)‚ then create this data table in your notebook and fill it in. Vial
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Study of Oxygen Consumption to Measure Energy Metabolism in Mammals Brianne Simonsen Lab Section 8 4 Oct. 2005 Abstract In this experiment the oxygen consumption of a mouse in environments of varying temperatures was studied. The hypothesis behind this experiment was that more oxygen would be consumed at a lower temperature to maintain body heat. To measure the rate of oxygen consumption a mouse was given a specific amount of oxygen. The amount consumed in a specific time was measured and
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Meal Worm Cellular Respiration Experiment Introduction Cellular respiration provides energy to all living organisms by collecting energy from food molecules. The cell then rearranges complex molecules to simpler molecules and uses that energy to make a molecule that stores energy called adenosine triphosphate also known as ATP. Cellular respiration can occur with or without oxygen. When it occurs without oxygen‚ it is called anaerobic respiration. There are very few organisms that can get
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