independent variable in our lab was the percent of molasses in each test tube. The dependent variable was the height of the CO2 produced from the yeast cells fermenting. The rate of the metabolism of the yeast cells was measured by the height of the CO2 produced- the larger the measurement‚ the higher the metabolism. The purpose of having a test tube with 0% molasses was to show that yeast cannot have this reaction without any food source. The purpose of having a
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An experiment to demonstrate the effect of temperature on fermentation by yeast The purpose of this laboratory is to observe how temperature affects the metabolism of Grape juice by visibly noting the volume changes of identical food mixes containing yeast at different temperatures. Background Information If yeast is added to a liquid containing sugar and other nutrients‚ kept at an appropriate temperature (and deprived of oxygen)‚ it will turn the sugars into ethanol (alcohol) and carbon
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The body is dependent on regular fuel to grow and develop. A balanced diet is to include a large number or variety of foods. There are five basic food groups and I will outline them and their function in the body. One basic food is bread‚ other cereals and potatoes and the main nutrient for this type of food is carbohydrate‚ calcium‚ iron‚ B vitamins and dietary fibre. The main function of carbohydrate in the body is to provide energy. Dietary fibre is not absorbed but passes through the gastrointestinal
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Living organisms catabolize organic molecules within their cells and use the energy released to manufacture ATP by phosphorylating ADP. Many prokaryotes and virtually all Eukaryotes phosphorylate ADP either through fermentation (anaerobic) or respiration (aerobic). Both of these processes involve oxidation of foodstuffs‚ yet only the latter requires oxygen. Cellular respiration is a very complex process that consists of many steps that take place inside the cell‚ in an organelle called a mitochondrion
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get the effects) a few minutes after drinking the shake. If you want to get the most out of your workout‚ immediately drink a recommended portion of whey protein isolate shake soon after. However‚ if you want that suppressed appetite and increased metabolism are sustained throughout the day‚ you may want to get a formulation that has whey protein concentrate plus other forms of protein that are digested a bit slower than whey; the slower-acting varieties will make sure you still enjoy the benefits the
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fructose intolerance can be caused by mutations in the ALDOB gene. The ALDOB gene is responsible for making the aldolase B enzyme. The aldolase B enzyme is primarily seen in the Liver. This helps for the fructose metabolism. This enzyme is responsible for the further step in the metabolism of fructose‚ which breaks down the molecule fructose-1-phosphate into other molecules called glyceraldehyde and dihydroxyacetone phosphate. * The lack of aldolase B can results in the accumulation of fructose
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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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CHAPTER 8 AN INTRODUCTION TO METABOLISM Metabolism‚ Energy‚ and Life 1. Explain the role of catabolic and anabolic pathways in cellular metabolism. Catabolic means the molecule is broken down into smaller parts. Anabolic means molecules are used to build bigger compounds. 2. Distinguish between kinetic and potential energy. Kinetic energy is the energy of object in motion. Potential energy is the energy a object has due to its position or traits. 3. Distinguish between
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Abstract This experiment focuses on the effects water bath temperatures have on D. melanogaster entering and recovering an anoxic coma. It was found that there was an indirect relationship between the amount of time it took D. melanogaster to enter and recover from an anoxic coma and the temperature of the water bath. D. melanogaster was able to enter and recover from the anoxia coma quicker when they were drowned in a cold water bath condition when comparing these results to the warm water bath
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they have an active spot on the enzyme that will only work with a specific shape of a particular substance (substrate). Aldolase B deficiency Aldolase B is an enzyme found predominantly in the liver that plays a major role in fructose metabolism. In hereditary fructose intolerance (HFI)‚ individuals have a build up of fructose 1- phosphate (F1P)‚ due to the absence or deficiency of aldolaseB‚ necessary to break down F1P into the two three carbon molecules utilized in the glycolytic pathway
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