processes were done to isolate the different kinds of proteins. The protein casein was extracted from skimmed milk through isoelectric precipitation, albumin was also extracted from skimmed milk through heat denaturation, gluten was isolated from wheat flour through difference in solubility, and myoglobin from beef meat through salting out or salt-induced precipitation. The main objective of the qualitative color reaction of the proteins is to analyze the chemical groups present in the protein and explain
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The biosphere is the region of the surface and atmosphere of the earth (or another planet) occupied by living organisms. It contains all the living things in the world: plants, animals and bacteria. It includes other layers of the atmosphere which are called the lithosphere, the troposphere and the hydrosphere. The lithosphere is the other region of the earth, the troposphere is the lower region of the atmosphere and the hydrosphere is the region of lakes, oceans, streams, ice and clouds that make
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BIOL2103 Biological Sciences Laboratory Course Practical 3 Laboratory manual Isolation of nucleic acid and spectrophotometry Introduction: The ability to isolate and quantify nucleic acids accurately and rapidly is a prerequisite for many of the methods used in biochemistry and molecular biology. The concentration of DNA or RNA in a sample, and its condition, are often estimated by running the sample on an agarose gel. Such concentration estimates are semiquantitative at best and are time-consuming
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hydrocarbons. These air pollutants can cause other problems such as photochemical smog, temperature inversions, and the two most harmful acid deposition and acid rain. Sulfur dioxide is one source of air pollution. This is a yellowish brown gas that forms when fuel, coal, and oil are burned. One major problem of sulfur dioxide is that is dissolves in water vapor to form acid. It interacts with other gases and particles in the air to form chemicals that can not only be harmful to humans, but the environment
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The Air We Breathe Air pollution is a serious problem around the world and action should be taken to reduce the pollutants put into the atmosphere to have better air quality, reduce acid rain, and put an end to global warming. Air pollution is the contamination of the atmosphere by different types of wastes and an air pollutant is any substance in the air that have have negative effects on humans and the environment. The different types of wastes includes, gases, liquids, and solids, and can all
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MANUAL DNA EXTRACTION FROM BLOOD or LYMPHOCYTES with PHENOL/CHLOROFORM The cell and nuclear membranes are destroyed by the combined action of SDS and proteinase K. The cell debris from lysis, mainly protein in nature, is captured by organic solvents such as phenol and chloroform. The DNA, which is insoluble in the organic phase, is present in the non-miscible aqueous phase. The DNA is precipitated, washed, dried and redissolved in solution, in an aqueous buffer. Equipment and Materials
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/ˈproʊti.ɨnz/) are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within living organisms, including catalyzing metabolic reactions, DNA replication, responding to stimuli, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding
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Surviving Acid Rain By Rajwinder Munder ENG 1121 Professor Murphy May 5th, 2015 Outline Intro: Thesis Statement: With the increase of pollution of industry, acid rain has become a serious problem in the world today. Main Point: Acid rain has been a threat to the world’s ecosystems and its people, becoming one of the most dangerous forms of pollution today. Body: Articles: 5 year study of rainwater chemistry in a coastal megacity in south china takes place specifically in Shen
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down toxic waste. 6. Deforestation- removing all the trees and plants in a area 7. Pesticide- chemicals applied to farm fields to control weeds and insects and fungi 8. Reclamation- to restore the land to its original form 9. Acid precipitation- forms when sulfur dioxide and nitrogen oxides combine 10. Ozone hole- which is a decrease in the ozone in polar regions 11. Photochemical smog- that’s forms mainly from automobile exhaust in the presence of sunlight 12. Nonpoint
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Patricia Romero-Tinajero Chemistry 141 November 19, 2015 Nitric Acid Chemical Name= nitric acid Molecular Formula=HNO3 Molar Mass= 63.0 g/mol Composition= H (1.6%) N (22.2%) O (76.2%) Density= 1.54 g/cm³ Nitric acid (HNO3), is a water-soluble liquid that can range in color from clear to yellow liquid, it forms white crystals when it solidifies at -41.6˚C. It boils at 86˚C, if is boiled light
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