Cellular Respiration Lab Report Wednesday 8:00 A.M. Lab March 2nd‚ 2005 I. Introduction In this lab we are measuring the amount of oxygen used in both germinating and non germinating peas. We are measuring the oxygen consumption by taking a reading of a respirometer submerged in two water baths. The first bath will be cold water and the second warm to determine the effect of temperatures on oxygen consumption. Our negative control will be glass beads to measure to increase or decrease
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Cellular Respiration My hypothesis for the germinated pea experiment was that the level of aerobic respiration would increase as the temperature would increase. I also predicted that there would be an upper temperature limit. The experiment proved part of my hypothesis correct and part of it incorrect. I was correct in predicting that the rate would increase as the temperature increase‚ but I was incorrect in hypothesizing that there would be an upper limit. My hypothesis for the larvae experiment
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RESPIRATION Syllabus * Define respiration * State the uses of energy in the body of humans * Define aerobic respiration * State the equation for aerobic respiration using symbols * Define anaerobic respiration * State the word equation for anaerobic respiration in muscles during hard exercise * State the balanced equation for anaerobic respiration in muscles (C6H12O6 → 2C3H6O3) and the microorganism yeast (C6H12O6 →2C2H5OH + 2CO2)‚ using symbols * Describe the effect
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net difference. 3. The rise and change in the measurements the same way that yeast rises when baking with sugar. 4. If the yeasts metabolism was slowed down‚ the product would stop rising. This could be done by using the variables‚ light and temperature. Both of these variables would affect the product from rising. 5. Time could have erred and the placement of the tubes into each other. If different tubes were used that fitted closer together would have improved this project. Pinto Beans
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Mechanics of Respiration Angelica D. Francisco‚ MD‚ MSc Edited to Word Format by: GASES KINETIC THEORY OF GASES o MOLECULES IN CONSTANT MOTION > TEMPERATURE > PRESSURE > VOLUME AVOGADRO’S LAW: V n CHARLES’ LAW: V=kT THE VOLUME OF A GAS IS PROPORTIONAL TO THE TEMPERATURE V = kT‚ P is constant IDEAL GAS EQUATION V = kn‚ T and P are constant EQUAL VOLUMES OF GASES‚ CONTAIN EQUAL NUMBER OF MOLECULES. PV= nRT P‚ PRESSURE V‚ VOLUME OF GAS n‚ NUMBER OF MOLECULES OF GAS R‚ GAS CONSTANT T‚ TEMPERATURE P1V1 =
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Sarwal AP Lab 4 Determining the rate of Cellular Respiration Using Germinating and Dry Peas Purpose: To determine the rate of cellular respiration using dry and germinating peas. Introduction: In this lab‚ we are investing cellular respiration‚ specifically aerobic cellular respiration. Aerobic cellular respiration is the process by which cells consume oxygen during the oxidation of glucose and produce CO2 as a byproduct. During cellular respiration‚ glucose is split into a 6 carbon sugar‚ G3P through
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Respiration Objectives 1. 2. 3. 4. 5. 6. To describe oxidation and reduction in terms of electron and H+ transfer. To distinguish anaerobic from aerobic cellular respiration in terms of ATP‚ oxygen‚ and chemiosmosis. To demonstrate that carbon dioxide is a product of cell respiration. To determine the effect of boiling on the aerobic respiration of bean seeds and explain the result in terms of enzyme activity. To measure the rate of oxygen consumption in germinating bean seeds. To determine the
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Gas exchange in animals External respiration: not to be confused with cellular respiration‚ although purpose is to provide oxygen and eliminate carbon dioxide Single-celled organisms achieve this by simple diffusion Larger organisms need specialized breathing organs Getting the air into the body is one challenge Circulatory system needed to distribute oxygen to the tissues Specialized blood cells can transport oxygen (solubility in plasma is very low) The process of breathing Air has much
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RESPIRATION * The release of energy from food * All living cells need energy to carry out M R S G R E N‚ contraction of muscles‚ build up of larger molecules (e.g. proteins)‚ maintains steady body temperature (homeostasis) * Aerobic: * needs oxygen * only occurs when a certain amount of oxygen is available * C6H12O6 + 6O2 6CO2 + 6H2O + Energy * releases large amount of energy (2900 KJ) * Anaerobic: * without oxygen * [glucose lactic acid]
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Aerobic respiration is the release of energy from glucose or another organic substrate in the presence of Oxygen. Strictly speaking aerobic means in air‚ but it is the Oxygen in the air which is necessary for aerobic respiration. Anaerobic respiration is in the absence of air. Here is a molecular model of a glucose molecule. You do not need to memorise the diagram for you GCSE exam‚ but it should help you to understand that a molecule of glucose contains six atoms of Carbon (shown in blue)‚ twelve
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