two or more elements in a fixed‚ definite proportion is a. A solution. b. A heterogeneous mixture. c. An alloy. d. A homogeneous mixture. e. A compound. 3) (2 points) Read the water level with the correct number of significant figures. a. 5.32 mL b. 5.3 mL c. 5.320 mL d. 5 mL e. 5.3200 mL 4) (2 points) When 2 elements form 2 different compounds‚ the masses of element B that combine with 1g of element A can be expressed
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least about. As OpenStax CNX puts it‚ “Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules”. Proteins are “Macromolecules that contain nitrogen as well as carbon‚ hydrogen‚ and oxygen”(Miller‚ Kenneth R.‚ and Joseph S. Levine 48). Macromolecules are exceedingly large molecules that can be made up of several lesser molecules called proteins. These proteins are made up of numerous amino acids‚ which are “Compounds
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The DNA molecule is often referred to as “The Blueprint of life”. Discuss. [SEP‚ 1999] Synopsis DNA structure Why is DNA called “blueprint” Features of the genetic code ------------------------------------------------------------------------------------- Deoxyribonucleic acid (DNA) is a vital component of both eukaryotic and prokaryotic cells. A blueprint is a detailed drawing or map which identifies and directs the construction and development of a building or an object. DNA is the hereditary
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information he would apply throughout his career. Oratory continued to play a significant role in his life when he served as a chief military aide to Douglas MacArthur‚ U.S. Army Chief of Staff in 1933‚ where his duties included writing speeches and policy papers. This opportunity provided Eisenhower with invaluable experience which he employed and perfected during his own presidency. Among his career experiences‚ Eisenhower served as President of Columbia University. As President of the United States‚ Eisenhower
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caffeine molecule dissociates in water‚ proving that the compound is a weak electrolyte. A substance that completely dissociates in a solution‚ such as water‚ is considered an electrolyte and can therefore conduct electricity. This dissociation is caused by the atoms’ minimal nuclear charge‚ allowing the substance to break apart entirely into its ions. Ions are mobile‚ which induces a current and contributes to the substance’s high electrical conductivity. Caffeine is composed of atoms that have
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structural support‚ cell adhesion‚ transport for molecules‚ and cellular communication. Through dehydration synthesis‚ the release of a water molecule from the joining of two amino acid groups‚ a peptide bond forms. For the experiment performed in lab‚ amino acids and peptide bonds found in protein were investigated in different food substances‚ it was assumed that liquid foods with a higher viscosity would contain proteins.
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Identification Of Biological Molecules Biology 12 Behrooz Kianian Period: 4 Partner: Chantelle Date: Thursday‚ Nov 7th Question 1. What happens to protein when they are exposed to very high temperatures? Proteins exposed to very high temperatures become denatured. Meaning they change shape. If a protein is denatured
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is one useful spinoff of basic research into structure of the atom. Research‚ however‚ is expensive. Many people argue that high cost of research outweighs its potential benefits. Provide one argument for and one argument against increasing current funding for atomic-structure research. Use specific examples from this lesson in your answer to support each position. (6 marks) Answer: 2. The emission spectrum of an unknown element contains two lines-one in the visible portion of spectrum and
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Report Biological Molecules Introduction: In this experiment‚ simple chemical tests will be performed to identify the presence of various types of biological molecules. These tests take advantage of the fact that different types of molecules have different functional groups and‚ therefor‚ different chemical properties. Thus‚ they will react to test reagents (also called indicators) differently. Materials: Biuret‚ Sudan III‚ Iodine‚ Benedict‚ water‚ hot plate‚ paper towels‚ pipette‚ ruler
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Elements of a High Performance Organization AJS/512 March 24‚ 2013 Instructor: Michele Bradford Developing and maintaining a high performances organization in today society can be challenge‚ organizations must have responsiveness‚ speed‚ and quality that is beyond the reach of individual performance. When the organization has a high performances teams generate commitment and provide the elements that inspire employees to give their very best. need to ensure that they are using an organizational
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