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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McGowan Goldfish Respiration Lab Introduction The purpose of this experiment was to recognize the effects of temperature on the breathing rate of goldfish (Carassius auratus). Goldfish obtain oxygen from the water; the fish have to distribute the oxygen from the water into their bloodstream. This transfer of oxygen occurs over a surface area of capillary membranes contained in the feathery filaments of the gills located beneath the operculum. According to “The Respiration System of a Goldfish”
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PHOTOSYNTHESIS & CELLUAR RESPIRATION LAB REPORT % Absorption 400 425 450 475 500 525 550 575 600 625 650 675 700 Average 47 44 37 27 14 10 8 9 9 10 15 17 14 Use the graph of Average % Absorption for Grass Pigments to answer the following questions. ANSWER ONLY THE QUESTIONS BELOW. YOU WILL LOSE POINTS IF YOUR ANSWER INCLUDES UNRELATED INFORMATION. 1. What specific range of wavelengths explains why grass is green? The absorption of all wavelengths outside approximately
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Cellular Respiration and Fermentation Facts to Remember 1. Cellular respiration is a catabolic series of reactions. 2. All living forms conduct some form of cellular respiration‚ either aerobic or anaerobic. a. Aerobic is in the presence of oxygen b. Anaerobic is in the absence of oxygen or none oxygen requiring. 3. The starting molecules consist of the biological molecules with carbohydrates (monosaccharides) as the first choice. The order of use is given below. a. Carbohydrates b.
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Measuring the rate of cellular respiration in yeast within different types of sugar Aim/Reasearch Question: How can the rate of cellular respiration be measured to find out if sucrose‚ dextrose‚ lactose‚ or maltose lets the yeast to respire more than others. Hypothesis: I think‚ dextrose yeast solution will respire the most number of bubbles because it is the simplest sugar to break. Materials: * Knut * Dropper * Graduated cylinder (100ml) * Warm water * Yeast Solution
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inorganic cofactor such as Magnesium to the rate of respiration of yeast was determined using Durham tube assembly with the substrate glucose. After thirty minutes‚ the test tube with the cofactor in the form of Magnesium sulphate MgSO4 showed the higher amount of carbon dioxide evolved which was measurable through volume and was one of the by- products of cellular respiration. This stated that the higher amount of CO2 evolved‚ the higher the rate of respiration. Thus‚ the hypothesis “If enzymes need cofactors
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stimulant‚ stimulants speed up metabolic processes‚ cellular respiration is a metabolic process. CO2 production is an indicator of cellular respiration. With these facts a hypothesis stating that the rate of cellular respiration will increase in higher concentrations of nicotine‚ which can be observed by the increase of CO2 production. Cellular respiration is the most efficient way for cells to harvest energy stored in food. Cellular respiration is defined as the aerobic harvesting of energy from food
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Calculation Process: The rate of respiration is calculated by dividing the distance that the drop of dye moved over 5 (period of time). For example‚ at 19 OC‚ the distance that the drop has moved after 5 minutes for the 3 trials are respectively 0.19‚ 0.10 and 0.13. The rate of trial 1 is then calculated by dividing 0.19 over 5‚ which is 0.0380 (shown above). For average rate of respiration‚ it is calculated by adding up all 3 trials of the same temperature and dividing the sum by 3. Additionally
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Conclusions The amount of cellular respiration increases based on the amount of exercise. The equation for cellular respiration is C6H12O6 + 6O2 ⇒ 6CO2 + 6H2O + ATP. Glucose is broken down into 2 pyruvate. The pyruvate then travels through the Kreb cycle and produces carbon dioxide. The oxygen travel through the electron transport train and produces water and energy. In order for the body to maintain homeostasis while exercising more oxygen is needed and cellular respiration increases. In return for a greater
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the rate of anaerobic respiration in yeast. Research and Rationale: My investigation consists of researching and carrying out experiments in order to obtain results on how the rate of respiration is affected by temperature. In the experiment I will use one sugar but will be changing the temperatures. In my investigation I will carry out an experiment where one sugar is used to test how changes in temperature (10⁰C - 60⁰C) affect the rate of anaerobic respiration in yeast. I will be carrying
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