abundant elements in living organisms. These elements are held together by covalent bonds‚ ionic bonds‚ hydrogen bonds‚ and disulfide bonds. Covalent bonds are especially strong‚ thus‚ are present in monomers‚ the building blocks of life. These monomers combine to make polymers‚ which is a long chain of monomers strung together. Biological molecules can be distinguished by their functional groups. For example‚ an amino group is present in amino acids‚ and a carboxyl group can always be found in fatty
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molecules. List from memory the electronegativity of carbon‚ nitrogen‚ oxygen and hydrogen. Summarize how polymers are made and broken down and how water participates in these reactions. List the different kinds of biological macromolecules and their monomers. Describe the structure and functions of: Amino acids Simple sugars Nucleotides Summarize the different forms and functions of complex carbohydrates. Describe the possible levels of protein structure. Summarize the fundamental property of
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JOSEPHINE F. KHONGHUN SPECIAL EDUCATION CENTER WAWANDUE‚ SUBIC‚ ZAMBALES 4TH Prelim Test in ADVANCED CHEMISTRY NAME: SCORE: YEAR AND SECTION: DATE: I. MATCHING TYPE. Match column A with column B. Write the letter in Column B that matches the item in Column A on the space provided. ( 1 pt each) A. B. ______1. Deposits of organic materials A. petroleum ______2. Complex mixture of hydrocarbons principally alkanes
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bus 9.2 – Production of Materials: Δ. Construct word and balanced formulae equations of all chemical reactions as they are encountered in this module: • Basic reactions to remember: – Acid reactions: ▪ acid + base [pic] salt + water HCl(aq) + NaOH(aq) [pic]NaCl(s) + H2O(l) ▪ acid + metal [pic] salt + hydrogen gas HCl(aq) + Mg(s)[pic]MgCl2(s) + H2 (g) ▪ acid + carbonate [pic] salt + carbon dioxide gas + water HCl(aq) + CaCO3(s)[pic] CaCl(s) + CO2(g) + H2O
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flow index. Introduction: Polymers are an important class of materials. The range of properties of polymeric materials allows it to be essential in everyday life. The simplest polymer is polyethylene which consists of long chains of C2H4 monomers. Each monomer is joined by a covalent bond while the bonding between the chains is a weak van der Waals bond. The weakness of the van der Waals bond is the source for the properties of polyethylene. An extrusion plastometer will be used to measure the
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A Macromolecule is a molecule with a very large number of atoms .The word macromolecule is usually used for describing polymers. Molecules that are made up of smaller molecules are called monomers‚ there are also Organic Molecules composed of carbon atoms .The functions of the Four big Macromolecules: First‚ Carbohydrates‚ carbohydrates is the function of being used for energy production during cellular respiration. Second ‚ Lipids‚ lipids are used for four things; insulation and long-term energy
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AS Biology‚ Biological Molecules Revision Notes Distinguish between monomers and polymers: Monomers- Identical small molecules. Polymers- Chainlike molecules formed from the linking together of many similar. Distinguish between monosaccharides‚ disaccharides‚ and polysaccharides: Monosaccharides- Simple sugars; sugar molecules may be enantiomers due due to the spatial arrangement of parts around asymmetric carbons; raw material for synthesis of other organic molecules. Disaccharides-
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Like cement sets the foundation for a house‚ the cell theory sets the foundation for biology. Schleiden and Schwann proposed the cell theory‚ which states that the cell is the basic unit of life and that new cells arise only from the reproduction of already existing cells via cell cycle‚ in 1839. Since the cell is the structural and functional unit of life as the house is for a community‚ without the house the community would be irritated and would not be stable‚ the community would therefore cease
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Glucose‚ followed by Sucrose and Fructose respectively. Given more time I believe that Sucrose would have surpassed glucose in total rate (ml CO2/hr) as time and energy was taken as the yeasts cells broke Sucrose down into its glucose and Fructose monomers. That being said with all the substrates being of .14M in addition to being the limiting reagent of the reaction Sucrose entered .14M Glucose and .14M Fructose into the glycolytic pathway where as Glucose only entered .14M of glucose into the glycolytic
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thermal coefficient of expansion and polymerization shrinkage reduce and the overall handling esthetic results are improved (4). Different resins have different wear results due to their filler particles. Macrofilled resins have a higher amount of monomers compared to hybrid and microfilled composites and this result in higher wear rate of composite because of the large diameter of the main filler (5). The majority of filler used today is silicon dioxide; quartz and boron silicates and lithium aluminum
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