1. Eukaryotic cells have a true nucleus‚ bound by a double membrane. Prokaryotic cells have no nucleus. The purpose of the nucleus is to sequester the DNA-related functions of the big eukaryotic cell into a smaller chamber‚ for the purpose of increased efficiency. This function is unnecessary for the prokaryotic cell‚ because its much smaller size means that all materials within the cell are relatively close together. Of course‚ prokaryotic cells do have DNA and DNA functions. Biologists describe
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solvents; and (6) synthetic fuels. Some Microbial Species Used for Producing Commercial Products. Industrial Chemicals Saccharomyces cerevisisae Ethanol (from Kluyveromyces fragilis glucose) Clostridium Ethanol (from acetobutylicum lactose) Asergillus niger Acetone and Butanol Citric acid Amino Acids and Flavor-enhancing Nucleotides Corynebacterium L-Lysine glutamicum 5’- inosinic acid and Corynebacterium 5’ – guanylic acid glutamicum MSG Corynebacterium gluatamicum Vitamins Ashbya gossypii Raboflavin
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Biology 181 Ana Marti-Subirana Identification of unknown a-Amylase through testing different temperatures and pH values to detect the absorbance of maltose. Introduction: Enzymes are biological catalysts‚ mainly proteins for this experiment‚ generated by an organism to speed up chemical reactions. They have active sites on which the substrate is attached‚ and then broken up or joined. For this experiment we are going to work with the enzyme a-amylase. Amylase is an enzyme that breaks
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GEOPACKET SUBSTITUTE essay By Nathaniel lee 22 3/2/2012 In the United States‚ there are good places to live and bad places to live. There are rich cities and poor cities‚ strong cities and weak cities. Cities that need financial aid or ones that are economically comfortable. This same concept applies to other countries and even continents‚ such as Canada and/or Asia. In a continent‚ there are countries that are the best or worst places to live in. In countries‚ they are cities instead
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CHAPTER I Introduction Background of the Study A lot of our citizens are dependent on commercially available fungicides to control fungi growth at homes and businesses. However‚ most of these products are costly and contain dangerous chemicals that may harm human health and other organisms. The intention of this investigatory project is to manufacture an indigenous product that is effective‚ innocuous‚ and affordable to eradicate fungi‚ specifically bread molds. Mold is something that
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dilution method using Fusarium solani‚ Fusarium oxysporum‚ Aspergillus flavus‚ Alternaria alternate‚ Rhizoctnia solani‚ Pythium ultimum‚ Bipolaris oryzae‚ Rhizopus‚
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trading with aggressive imperialism"(Uchendu 1965‚ p.4). According to Coleman (1971) “the discovery in 1830 that the Niger entered the Bight of Biafra served as an invitation for traders to penetrate the hinterland” (p.41). According to him between 1886 till 1890 the Royal Niger Company administered territories in the basin of the Niger on behalf of Britain after these areas had been acknowledged in the Berlin conference of 1885 as belonging to Britain. The British merchants were as vital to the
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The Niger Delta Petroleum System: Niger Delta Province‚ Nigeria‚ Cameroon‚ and Equatorial Guinea‚ AfricabyMichele L. W. Tuttle‚ Ronald R. Charpentier‚ and Michael E. BrownfieldOpen-File Report 99-50-H | Chapter ATertiary Niger Delta (Akata-Agbada) Petroleum System (No. 701901)‚ Niger Delta Province‚ Nigeria‚ Cameroon‚ and Equatorial Guinea‚ Africaby Michele L. W. Tuttle‚ Michael E. Brownfield‚ and Ronald R. CharpentierABSTRACT In the Niger Delta province‚ we have identified one petroleum
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unequal in various countries like Niger. This source was relevant to my research as it provided me with useful information. For example‚ what it means to be oppressed and how are women oppressed in a society. Also‚ how does all of this effect the society as a whole. 2. Asumussen‚ U. Culture of Nigeria -
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Nutritional and environmental impact on carcinogenesis Nutritional and environmental impact on carcinogenesis Tumor: A mass of cells which growth is atypical when referenced to the normal surrounding tissue structure. Neoplasm: Literally means “new growth” and is a term commonly used the same way that the term tumor is used. An abnormal mass of tissue‚ the growth of which exceeds and is uncoordinated with that of the normal tissues and persists in the same excessive manner after
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