properties: Potential energy and Kinetic energy. The law of Energy states that: Total Energy = Potential Energy + Kinetic Energy Or Em = Ep + Ek Also‚ the equations for Potential energy and Kinetic energy are stated to get the Total Energy. They are respectively: Ep = mgh and Ek = ½ (m)v2 The Conservation of Energy states that energy is always constant. If potential energy increases then kinetic energy decreases and vice versa
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CHINHOYI UNIVERSITY OF TECHNOLOGY Name Tee Reg Number C1112097k Level 2;2 Course Bsapt Lecturer DR CHIGU QUESTION Discuss the roles of bioremediation at a wastewater (sewage) treatment plant Microorganisms are used to change harmful substances to nontoxic substances. This is a new technology for treating chemical spills and hazardous waste. Bacteria‚ fungi and yeast
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Unit One Continued Biology is Life and the Living Characterstics of living things Must have Complex and Organized structure based on element carbon Flower (complex and organized) Reproduction and show gene controlled by heredity Camel reproduces and heredity is the traits based on the genes of the DNA Instructions on how to create YOU Crystal reproduces but has no Genes and no control Living things show growth and development Egg cell with sperm to embryo to child 23+23 for DNA Energy
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serve either a structural or functional role in the cells. Bacteria thrive by four things oxygen‚ food (nutrients)‚ warmth and time but two others can be moisture and acidity. Nutrients are needed for energy‚ nitrogen (for DNA and proteins)‚ phosphorus (for energy)‚ and others. Warmth is needed so the bacteria can stay warm. Oxygen is needed so the bacteria can make energy and time is needed for the bacteria to complete binary fission over and over again. Acidity is needed so the bacteria can
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find the cause of abnormal calcium levels. The PTH controls calcium and phosphorus levels in the blood. If the blood calcium level is too low‚ the parathyroid glands release more PTH. This causes the bones to release more calcium into the blood and reduces the amount of calcium released by the kidneys into the urine. Also‚ vitamin D is converted to a more active form‚ causing the intestines to absorb more calcium and phosphorus. The bones may lose calcium‚ which may be the cause of osteoporosis and
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following hypothesis were tested A. A deficiency of either nitrogen‚ phosphorus or both nutrients will reduce the height of the cereal crop. B. Tiller counts of the plants deficient in nitrogen or phosphorus will be significantly lower than that in the control group and the plants lacking both nitrogen and phosphorus will have a further dramatic reduction. C. Root system development in plants deficient in phosphorus‚ a nutrient that promotes root growth‚ will be significantly reduced
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some chemicals in it through runoff that would be harmful to duckweed but beneficial to the algae growing in those wells. Over the course of six weeks‚ we saw a lot of changes in the Thalli. We noticed that the growth of thalli in the nitrogen and phosphorus solution was significantly higher than when we started. We also noticed the growth of thalli in the creek water solution was relatively
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been verified.The “Kinetics of Ethanol Oxidation” laboratory experiment utilized Beer’s law and spectroscopy to monitor concentration and the rate of ethanol oxidation through the LoggerPro System. This data then helped determine the kinetic rate constant‚ k‚ and the order of the reaction. First‚ the wavelength of maximum absorbance was determined using the LoggerPro interface and a Vernier colorimeter. Beer’s law was then used to determine the molar absorptivity. Finally‚ a kinetic study of ethanol
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Chapter 7 Multiple Choice Questions Name: ____________________________________________________________ 1) Any network of relationships among a group of components‚ which interact with and influence one another through exchange of matter and/or information‚ is referred to as ________. A) an interchange B) a system C) an ecosystem D) an environmental collaboration E) hierarchy Diff: 1 Objective: 7.1 Systems‚ ecosystems‚ biotic‚ and abiotic
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molar mass of aniline is 93 g/mol. What is its molecular formula? 13. Calculate the mass percent of carbon‚ nitrogen and oxygen in acetamide‚ C2H5NO. 14. A 50.51 g sample of a compound made from phosphorus and chlorine is decomposed. Analysis of the products showed that 11.39 g of phosphorus atoms were produced. What is the empirical formula of the compound? 15. When 2.5000 g of an oxide of mercury‚ (HgxOy) is decomposed into the elements by heating‚ 2.405 g of mercury are produced. Calculate
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