Heteropolysaccharides: “the complex carbohydrates formed by combining carbohydrates with noncarbohydrates or carbohydrate derivatives; examples include pectin‚ lignin‚ glycoproteins‚ glycolipids‚ and mucopolysaccharides.” HETEROPOLYSACCHARIDES Heteropolysaccarides contain two or more different kind of monosaccharides. Usually they provide extracellular support for organisms of all kingdoms: the bacteria cell envelope‚ or the matrix that holds individual cells together in animal tissues‚
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stability of sawdust-reinforced composite materials depends on the development of coherent interfacial bonding between sawdust and matrix. The general components of sawdust are cellulose‚ hemicellulose‚ lignin‚ pectin‚ waxes‚ and water-soluble substances [2]‚ [3]. Cellulose‚ hemicellulose‚ and lignin are the main components contributed the strength‚ flexural‚ and impact properties of the composites. Moreover the bonding between sawdust and the hydrophobic matrix has effected to the mechanical properties
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Formation of Hydrocarbons Types of hydrocarbons Parameters for hydrocarbon accumulation Phases of alteration of organic matter Types of kerogen Migration of hydrocarbons Five Major Types of Hydrocarbons Kerogen: Kerogen is a fine-grained‚ amorphous organic matter. It is not soluble to normal petroleum solvents‚ like carbon disulfide. Its chemical composition is 75% C‚ 10% H‚ 15% other (sulfur‚ oxygen‚ nitrogen‚ etc.). It is very important in the formation of hydrocarbons because it is what generates
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Virtual Lab: Plant Transpiration Please complete questions below prior to attempting the lab report for this assignment. Table 1: Total Amount of Water (in mL) Transpired in One Hour Plant Type Normal Conditions (21oC) With Heater (27oC) With Fan (21oC) With Lamp (21oC) Arrowhead 3.6 6.6 7.5 4.0 Coleus 0.9 3.9 6.0 3.0 Devil’s Ivy 2.9 4.1 4.6 3.0 Dieffenbachia 4.1 6.0 7.7 3.9 English Ivy 1.8 3.2 5.1 2.1 Geranium 1.2 5.8 4.7 2.4 Rubber Plant 4.9 6.8 8.4 4.3 Weeping Plant 3.3 4.9 6.1
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CHAPTER 1 The Problem and Its background 1.1 INTRODUCTION The growing interest in the past to produce green materials that can reduce the problem involving waste materials by non-fibrous materials led to the development of natural fiber reinforced thermoplastic composites. Water Hyacinth (Eichhornia crassipes) also known as “water lily” is an aquatic plant which is found floating freely in the surface of fresh waters. Its rate of proliferation under certain circumstances is extremely
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CELL STRUCTURE CELL THEORY: Structural and functional unit of all living things New cells arise from already existing cells Cells contain information that instructs growth. This information can be passed onto new cells. MICROSCOPES: There are two main types of microscopes: Light and Electron Electron Micrographs- shown in colour LIGHT ELECTRON Uses beam of light Magnification = x1500 Resolution = 200 nm Wide range of specimens can be used Samples are fairly quick + easy to prepare
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Question 1: What is fly ash? What is it caused by and what are the effects? Fly ash is small particles of ash‚ caused by coal combustion. The incombustible materials remain behind as ash. Fly ash often stored wet and in bulk‚ and can spill or seep out of the containment into the soil and ground water. Fly ash can also corrode metal structures and is harmful to human health. Question 2: How can a solid fuel substance like coal be introduced into a steam powerplant? Combustion of coal is C+O2
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World Applied Sciences Journal 18 (5): 684-688‚ 2012 ISSN 1818-4952 © IDOSI Publications‚ 2012 DOI: 10.5829/idosi.wasj.2012.18.05.64179 Corresponding Author: M.I. Ibrahium‚ Department of Food Science and Technology‚ Faculty of Agriculture‚ AL-Azhar University‚ Cairo‚ Egypt. 684 Antioxidant Activities of Orange Peel Extracts A.E. Hegazy and M.I. Ibrahium Department of Food Science and Technology‚ Faculty of Agriculture‚ AL-Azhar University‚ Cairo‚ Egypt Abstract: This work aimed to evaluate
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The importance of carbohydrates in living organisms Carbohydrates contain carbon‚ hydrogen and oxygen in the ratio of 1.2.1.. There are many different types of carbohydrate‚ all of which are useful to living organisms. The most important carbohydrate is probable glucose. Glucose is a monosaccharide and is the monomer unit which makes up more complex polysaccharides. Two glucose molecules can be joined in a condensation reaction‚ whereby water is removed‚ for example to produce maltose‚ a disaccharide
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major contributors of acid rain‚ whereas CO2 is a greenhouse gas responsible for climate change. b.i.4.b. water pollution b.i.4.b.i. Waste water discharges for a pulp and paper mill contains solids‚ nutrients and dissolved organic matter such as lignin. It also contains alcohols‚ and chelating agents and inorganic materials like chlorates and transition metal compounds.Nutrients such as nitrogen and phosphorus can cause or exacerbate eutrophication of fresh water bodies such as lakes and rivers
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